diff --git a/package.json b/package.json
index 1b64746..407745b 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "nodejs-world",
   "version": "0.0.1",
   "dependencies": {
-    "express": "3.x",
+    "express": "4.x",
     "socket.io": "0.9.x"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index db15377..04f833c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2,21 +2,13 @@
 # yarn lockfile v1
 
 
-accepts@~1.2.12, accepts@~1.2.13:
-  version "1.2.13"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.2.13.tgz#e5f1f3928c6d95fd96558c36ec3d9d0de4a6ecea"
-  integrity sha1-5fHzkoxtlf2WVYw27D2dDeSm7Oo=
+accepts@~1.3.8:
+  version "1.3.8"
+  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.8.tgz#0bf0be125b67014adcb0b0921e62db7bffe16b2e"
+  integrity sha512-PYAthTa2m2VKxuvSD3DPC/Gy+U+sOA1LAuT8mkmRuvw+NACSaeXEQ+NHcVF7rONl6qcaxV3Uuemwawk+7+SJLw==
   dependencies:
-    mime-types "~2.1.6"
-    negotiator "0.5.3"
-
-accepts@~1.3.0:
-  version "1.3.7"
-  resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.7.tgz#531bc726517a3b2b41f850021c6cc15eaab507cd"
-  integrity sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==
-  dependencies:
-    mime-types "~2.1.24"
-    negotiator "0.6.2"
+    mime-types "~2.1.34"
+    negotiator "0.6.3"
 
 active-x-obfuscator@0.0.1:
   version "0.0.1"
@@ -25,189 +17,63 @@ active-x-obfuscator@0.0.1:
   dependencies:
     zeparser "0.0.5"
 
-base64-url@1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/base64-url/-/base64-url-1.2.1.tgz#199fd661702a0e7b7dcae6e0698bb089c52f6d78"
-  integrity sha1-GZ/WYXAqDnt9yubgaYuwicUvbXg=
+array-flatten@1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
+  integrity sha512-PCVAQswWemu6UdxsDFFX/+gVeYqKAod3D3UVm91jHwynguOwAvYPhx8nNlM++NqRcK6CxxpUafjmhIdKiHibqg==
 
 base64id@0.1.0:
   version "0.1.0"
   resolved "https://registry.yarnpkg.com/base64id/-/base64id-0.1.0.tgz#02ce0fdeee0cef4f40080e1e73e834f0b1bfce3f"
   integrity sha1-As4P3u4M709ACA4ec+g08LG/zj8=
 
-basic-auth-connect@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/basic-auth-connect/-/basic-auth-connect-1.0.0.tgz#fdb0b43962ca7b40456a7c2bb48fe173da2d2122"
-  integrity sha1-/bC0OWLKe0BFanwrtI/hc9otISI=
-
-basic-auth@~1.0.3:
-  version "1.0.4"
-  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-1.0.4.tgz#030935b01de7c9b94a824b29f3fccb750d3a5290"
-  integrity sha1-Awk1sB3nyblKgksp8/zLdQ06UpA=
-
-batch@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/batch/-/batch-0.5.3.tgz#3f3414f380321743bfc1042f9a83ff1d5824d464"
-  integrity sha1-PzQU84AyF0O/wQQvmoP/HVgk1GQ=
-
-body-parser@~1.13.3:
-  version "1.13.3"
-  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.13.3.tgz#c08cf330c3358e151016a05746f13f029c97fa97"
-  integrity sha1-wIzzMMM1jhUQFqBXRvE/ApyX+pc=
+body-parser@1.19.2:
+  version "1.19.2"
+  resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.2.tgz#4714ccd9c157d44797b8b5607d72c0b89952f26e"
+  integrity sha512-SAAwOxgoCKMGs9uUAUFHygfLAyaniaoun6I8mFY9pRAJL9+Kec34aU+oIjDhTycub1jozEfEwx1W1IuOYxVSFw==
   dependencies:
-    bytes "2.1.0"
-    content-type "~1.0.1"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    http-errors "~1.3.1"
-    iconv-lite "0.4.11"
+    bytes "3.1.2"
+    content-type "~1.0.4"
+    debug "2.6.9"
+    depd "~1.1.2"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
     on-finished "~2.3.0"
-    qs "4.0.0"
-    raw-body "~2.1.2"
-    type-is "~1.6.6"
-
-bytes@2.1.0:
-  version "2.1.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.1.0.tgz#ac93c410e2ffc9cc7cf4b464b38289067f5e47b4"
-  integrity sha1-rJPEEOL/ycx89LRks4KJBn9eR7Q=
-
-bytes@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.4.0.tgz#7d97196f9d5baf7f6935e25985549edd2a6c2339"
-  integrity sha1-fZcZb51br39pNeJZhVSe3SpsIzk=
+    qs "6.9.7"
+    raw-body "2.4.3"
+    type-is "~1.6.18"
 
-commander@2.6.0:
-  version "2.6.0"
-  resolved "https://registry.yarnpkg.com/commander/-/commander-2.6.0.tgz#9df7e52fb2a0cb0fb89058ee80c3104225f37e1d"
-  integrity sha1-nfflL7Kgyw+4kFjugMMQQiXzfh0=
+bytes@3.1.2:
+  version "3.1.2"
+  resolved "https://registry.yarnpkg.com/bytes/-/bytes-3.1.2.tgz#8b0beeb98605adf1b128fa4386403c009e0221a5"
+  integrity sha512-/Nf7TyzTx6S3yRJObOAV7956r8cr2+Oj8AC5dt8wSP3BQAoeX58NoHyCU8P8zGkNXStjTSi6fzO6F0pBdcYbEg==
 
 commander@~2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.1.0.tgz#d121bbae860d9992a3d517ba96f56588e47c6781"
   integrity sha1-0SG7roYNmZKj1Re6lvVliOR8Z4E=
 
-compressible@~2.0.5:
-  version "2.0.18"
-  resolved "https://registry.yarnpkg.com/compressible/-/compressible-2.0.18.tgz#af53cca6b070d4c3c0750fbd77286a6d7cc46fba"
-  integrity sha512-AF3r7P5dWxL8MxyITRMlORQNaOA2IkAFaTr4k7BUumjPtRpGDTZpl0Pb1XCO6JeDCBdp126Cgs9sMxqSjgYyRg==
+content-disposition@0.5.4:
+  version "0.5.4"
+  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.4.tgz#8b82b4efac82512a02bb0b1dcec9d2c5e8eb5bfe"
+  integrity sha512-FveZTNuGw04cxlAiWbzi6zTAL/lhehaWbTtgluJh4/E95DqMwTmha3KZN1aAWA8cFIhHzMZUvLevkw5Rqk+tSQ==
   dependencies:
-    mime-db ">= 1.43.0 < 2"
+    safe-buffer "5.2.1"
 
-compression@~1.5.2:
-  version "1.5.2"
-  resolved "https://registry.yarnpkg.com/compression/-/compression-1.5.2.tgz#b03b8d86e6f8ad29683cba8df91ddc6ffc77b395"
-  integrity sha1-sDuNhub4rSloPLqN+R3cb/x3s5U=
-  dependencies:
-    accepts "~1.2.12"
-    bytes "2.1.0"
-    compressible "~2.0.5"
-    debug "~2.2.0"
-    on-headers "~1.0.0"
-    vary "~1.0.1"
-
-connect-timeout@~1.6.2:
-  version "1.6.2"
-  resolved "https://registry.yarnpkg.com/connect-timeout/-/connect-timeout-1.6.2.tgz#de9a5ec61e33a12b6edaab7b5f062e98c599b88e"
-  integrity sha1-3ppexh4zoStu2qt7XwYumMWZuI4=
-  dependencies:
-    debug "~2.2.0"
-    http-errors "~1.3.1"
-    ms "0.7.1"
-    on-headers "~1.0.0"
-
-connect@2.30.2:
-  version "2.30.2"
-  resolved "https://registry.yarnpkg.com/connect/-/connect-2.30.2.tgz#8da9bcbe8a054d3d318d74dfec903b5c39a1b609"
-  integrity sha1-jam8vooFTT0xjXTf7JA7XDmhtgk=
-  dependencies:
-    basic-auth-connect "1.0.0"
-    body-parser "~1.13.3"
-    bytes "2.1.0"
-    compression "~1.5.2"
-    connect-timeout "~1.6.2"
-    content-type "~1.0.1"
-    cookie "0.1.3"
-    cookie-parser "~1.3.5"
-    cookie-signature "1.0.6"
-    csurf "~1.8.3"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    errorhandler "~1.4.2"
-    express-session "~1.11.3"
-    finalhandler "0.4.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    method-override "~2.3.5"
-    morgan "~1.6.1"
-    multiparty "3.3.2"
-    on-headers "~1.0.0"
-    parseurl "~1.3.0"
-    pause "0.1.0"
-    qs "4.0.0"
-    response-time "~2.3.1"
-    serve-favicon "~2.3.0"
-    serve-index "~1.7.2"
-    serve-static "~1.10.0"
-    type-is "~1.6.6"
-    utils-merge "1.0.0"
-    vhost "~3.0.1"
-
-content-disposition@0.5.0:
-  version "0.5.0"
-  resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.0.tgz#4284fe6ae0630874639e44e80a418c2934135e9e"
-  integrity sha1-QoT+auBjCHRjnkToCkGMKTQTXp4=
-
-content-type@~1.0.1:
+content-type@~1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.4.tgz#e138cc75e040c727b1966fe5e5f8c9aee256fe3b"
   integrity sha512-hIP3EEPs8tB9AT1L+NUqtwOAps4mk2Zob89MWXMHjHWg9milF/j4osnnQLXBCBFBk/tvIG/tUc9mOUJiPBhPXA==
 
-cookie-parser@~1.3.5:
-  version "1.3.5"
-  resolved "https://registry.yarnpkg.com/cookie-parser/-/cookie-parser-1.3.5.tgz#9d755570fb5d17890771227a02314d9be7cf8356"
-  integrity sha1-nXVVcPtdF4kHcSJ6AjFNm+fPg1Y=
-  dependencies:
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-
 cookie-signature@1.0.6:
   version "1.0.6"
   resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
   integrity sha1-4wOogrNCzD7oylE6eZmXNNqzriw=
 
-cookie@0.1.3:
-  version "0.1.3"
-  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.1.3.tgz#e734a5c1417fce472d5aef82c381cabb64d1a435"
-  integrity sha1-5zSlwUF/zkctWu+Cw4HKu2TRpDU=
-
-core-util-is@~1.0.0:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
-  integrity sha1-tf1UIgqivFq1eqtxQMlAdUUDwac=
-
-crc@3.3.0:
-  version "3.3.0"
-  resolved "https://registry.yarnpkg.com/crc/-/crc-3.3.0.tgz#fa622e1bc388bf257309082d6b65200ce67090ba"
-  integrity sha1-+mIuG8OIvyVzCQgta2UgDOZwkLo=
-
-csrf@~3.0.0:
-  version "3.0.6"
-  resolved "https://registry.yarnpkg.com/csrf/-/csrf-3.0.6.tgz#b61120ddceeafc91e76ed5313bb5c0b2667b710a"
-  integrity sha1-thEg3c7q/JHnbtUxO7XAsmZ7cQo=
-  dependencies:
-    rndm "1.2.0"
-    tsscmp "1.0.5"
-    uid-safe "2.1.4"
-
-csurf@~1.8.3:
-  version "1.8.3"
-  resolved "https://registry.yarnpkg.com/csurf/-/csurf-1.8.3.tgz#23f2a13bf1d8fce1d0c996588394442cba86a56a"
-  integrity sha1-I/KhO/HY/OHQyZZYg5RELLqGpWo=
-  dependencies:
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-    csrf "~3.0.0"
-    http-errors "~1.3.1"
+cookie@0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.4.2.tgz#0e41f24de5ecf317947c82fc789e06a884824432"
+  integrity sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==
 
 debug@2.6.9:
   version "2.6.9"
@@ -216,27 +82,10 @@ debug@2.6.9:
   dependencies:
     ms "2.0.0"
 
-debug@~2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/debug/-/debug-2.2.0.tgz#f87057e995b1a1f6ae6a4960664137bc56f039da"
-  integrity sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=
-  dependencies:
-    ms "0.7.1"
-
-depd@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/depd/-/depd-1.0.1.tgz#80aec64c9d6d97e65cc2a9caa93c0aa6abf73aaa"
-  integrity sha1-gK7GTJ1tl+ZcwqnKqTwKpqv3Oqo=
-
-depd@~1.1.0:
+depd@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.2.tgz#9bcd52e14c097763e749b274c4346ed2e560b5a9"
-  integrity sha1-m81S4UwJd2PnSbJ0xDRu0uVgtak=
-
-destroy@1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.3.tgz#b433b4724e71fd8551d9885174851c5fc377e2c9"
-  integrity sha1-tDO0ck5x/YVR2YhRdIUcX8N34sk=
+  integrity sha512-7emPTl6Dpo6JRXOXjLRxck+FlLRX5847cLKEn00PLAgc3g2hTZZgr+e4c2v6QpSmLeFP3n5yUo7ft6avBK/5jQ==
 
 destroy@~1.0.4:
   version "1.0.4"
@@ -248,226 +97,171 @@ ee-first@1.1.1:
   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
-errorhandler@~1.4.2:
-  version "1.4.3"
-  resolved "https://registry.yarnpkg.com/errorhandler/-/errorhandler-1.4.3.tgz#b7b70ed8f359e9db88092f2d20c0f831420ad83f"
-  integrity sha1-t7cO2PNZ6duICS8tIMD4MUIK2D8=
-  dependencies:
-    accepts "~1.3.0"
-    escape-html "~1.0.3"
-
-escape-html@1.0.2:
+encodeurl@~1.0.2:
   version "1.0.2"
-  resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.2.tgz#d77d32fa98e38c2f41ae85e9278e0e0e6ba1022c"
-  integrity sha1-130y+pjjjC9BroXpJ44ODmuhAiw=
+  resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
+  integrity sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==
 
 escape-html@~1.0.3:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
   integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
 
-etag@~1.7.0:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/etag/-/etag-1.7.0.tgz#03d30b5f67dd6e632d2945d30d6652731a34d5d8"
-  integrity sha1-A9MLX2fdbmMtKUXTDWZScxo01dg=
-
-express-session@~1.11.3:
-  version "1.11.3"
-  resolved "https://registry.yarnpkg.com/express-session/-/express-session-1.11.3.tgz#5cc98f3f5ff84ed835f91cbf0aabd0c7107400af"
-  integrity sha1-XMmPP1/4Ttg1+Ry/CqvQxxB0AK8=
-  dependencies:
-    cookie "0.1.3"
-    cookie-signature "1.0.6"
-    crc "3.3.0"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    on-headers "~1.0.0"
-    parseurl "~1.3.0"
-    uid-safe "~2.0.0"
-    utils-merge "1.0.0"
-
-express@3.x:
-  version "3.21.2"
-  resolved "https://registry.yarnpkg.com/express/-/express-3.21.2.tgz#0c2903ee5c54e63d65a96170764703550665a3de"
-  integrity sha1-DCkD7lxU5j1lqWFwdkcDVQZlo94=
-  dependencies:
-    basic-auth "~1.0.3"
-    commander "2.6.0"
-    connect "2.30.2"
-    content-disposition "0.5.0"
-    content-type "~1.0.1"
-    cookie "0.1.3"
+etag@~1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.1.tgz#41ae2eeb65efa62268aebfea83ac7d79299b0887"
+  integrity sha512-aIL5Fx7mawVa300al2BnEE4iNvo1qETxLrPI/o05L7z6go7fCw1J6EQmbK4FmJ2AS7kgVF/KEZWufBfdClMcPg==
+
+express@4.x:
+  version "4.17.3"
+  resolved "https://registry.yarnpkg.com/express/-/express-4.17.3.tgz#f6c7302194a4fb54271b73a1fe7a06478c8f85a1"
+  integrity sha512-yuSQpz5I+Ch7gFrPCk4/c+dIBKlQUxtgwqzph132bsT6qhuzss6I8cLJQz7B3rFblzd6wtcI0ZbGltH/C4LjUg==
+  dependencies:
+    accepts "~1.3.8"
+    array-flatten "1.1.1"
+    body-parser "1.19.2"
+    content-disposition "0.5.4"
+    content-type "~1.0.4"
+    cookie "0.4.2"
     cookie-signature "1.0.6"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    escape-html "1.0.2"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    merge-descriptors "1.0.0"
-    methods "~1.1.1"
-    mkdirp "0.5.1"
-    parseurl "~1.3.0"
-    proxy-addr "~1.0.8"
-    range-parser "~1.0.2"
-    send "0.13.0"
-    utils-merge "1.0.0"
-    vary "~1.0.1"
-
-finalhandler@0.4.0:
-  version "0.4.0"
-  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-0.4.0.tgz#965a52d9e8d05d2b857548541fb89b53a2497d9b"
-  integrity sha1-llpS2ejQXSuFdUhUH7ibU6JJfZs=
+    debug "2.6.9"
+    depd "~1.1.2"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
+    etag "~1.8.1"
+    finalhandler "~1.1.2"
+    fresh "0.5.2"
+    merge-descriptors "1.0.1"
+    methods "~1.1.2"
+    on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    path-to-regexp "0.1.7"
+    proxy-addr "~2.0.7"
+    qs "6.9.7"
+    range-parser "~1.2.1"
+    safe-buffer "5.2.1"
+    send "0.17.2"
+    serve-static "1.14.2"
+    setprototypeof "1.2.0"
+    statuses "~1.5.0"
+    type-is "~1.6.18"
+    utils-merge "1.0.1"
+    vary "~1.1.2"
+
+finalhandler@~1.1.2:
+  version "1.1.2"
+  resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
+  integrity sha512-aAWcW57uxVNrQZqFXjITpW3sIUQmHGG3qSb9mUah9MgMC4NeWhNOlNjXEYq3HjRAvL6arUviZGGJsBg6z0zsWA==
   dependencies:
-    debug "~2.2.0"
-    escape-html "1.0.2"
+    debug "2.6.9"
+    encodeurl "~1.0.2"
+    escape-html "~1.0.3"
     on-finished "~2.3.0"
+    parseurl "~1.3.3"
+    statuses "~1.5.0"
     unpipe "~1.0.0"
 
-forwarded@~0.1.0:
-  version "0.1.2"
-  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.2.tgz#98c23dab1175657b8c0573e8ceccd91b0ff18c84"
-  integrity sha1-mMI9qxF1ZXuMBXPozszZGw/xjIQ=
+forwarded@0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.2.0.tgz#2269936428aad4c15c7ebe9779a84bf0b2a81811"
+  integrity sha512-buRG0fpBtRHSTCOASe6hD258tEubFoRLb4ZNA6NxMVHNw2gOcwHo9wyablzMzOA5z9xA9L1KNjk/Nt6MT9aYow==
 
-fresh@0.3.0:
-  version "0.3.0"
-  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.3.0.tgz#651f838e22424e7566de161d8358caa199f83d4f"
-  integrity sha1-ZR+DjiJCTnVm3hYdg1jKoZn4PU8=
+fresh@0.5.2:
+  version "0.5.2"
+  resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
+  integrity sha512-zJ2mQYM18rEFOudeV4GShTGIQ7RbzA7ozbU9I/XBpm7kqgMywgmylMwXHxZJmkVoYkna9d2pVXVXPdYTP9ej8Q==
 
-http-errors@~1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.3.1.tgz#197e22cdebd4198585e8694ef6786197b91ed942"
-  integrity sha1-GX4izevUGYWF6GlO9nhhl7ke2UI=
+http-errors@1.8.1:
+  version "1.8.1"
+  resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.8.1.tgz#7c3f28577cbc8a207388455dbd62295ed07bd68c"
+  integrity sha512-Kpk9Sm7NmI+RHhnj6OIWDI1d6fIoFAtFt9RLaTMRlg/8w49juAStsrBgp0Dp4OdxdVbRIeKhtCUvoi/RuAhO4g==
   dependencies:
-    inherits "~2.0.1"
-    statuses "1"
-
-iconv-lite@0.4.11:
-  version "0.4.11"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.11.tgz#2ecb42fd294744922209a2e7c404dac8793d8ade"
-  integrity sha1-LstC/SlHRJIiCaLnxATayHk9it4=
+    depd "~1.1.2"
+    inherits "2.0.4"
+    setprototypeof "1.2.0"
+    statuses ">= 1.5.0 < 2"
+    toidentifier "1.0.1"
 
-iconv-lite@0.4.13:
-  version "0.4.13"
-  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.13.tgz#1f88aba4ab0b1508e8312acc39345f36e992e2f2"
-  integrity sha1-H4irpKsLFQjoMSrMOTRfNumS4vI=
+iconv-lite@0.4.24:
+  version "0.4.24"
+  resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.24.tgz#2022b4b25fbddc21d2f524974a474aafe733908b"
+  integrity sha512-v3MXnZAcvnywkTUEZomIActle7RXXeedOR31wwl7VlyoXO4Qi9arvSenNQWne1TcRwhCL1HwLI21bEqdpj8/rA==
+  dependencies:
+    safer-buffer ">= 2.1.2 < 3"
 
-inherits@~2.0.1:
+inherits@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
 
-ipaddr.js@1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.0.5.tgz#5fa78cf301b825c78abc3042d812723049ea23c7"
-  integrity sha1-X6eM8wG4JceKvDBC2BJyMEnqI8c=
-
-isarray@0.0.1:
-  version "0.0.1"
-  resolved "https://registry.yarnpkg.com/isarray/-/isarray-0.0.1.tgz#8a18acfca9a8f4177e09abfc6038939b05d1eedf"
-  integrity sha1-ihis/Kmo9Bd+Cav8YDiTmwXR7t8=
+ipaddr.js@1.9.1:
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.9.1.tgz#bff38543eeb8984825079ff3a2a8e6cbd46781b3"
+  integrity sha512-0KI/607xoxSToH7GjN1FfSbLoU0+btTicjsQSWQlh/hZykN8KpmMf7uYwPW3R+akZ6R/w18ZlXSHBYXiYUPO3g==
 
 media-typer@0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
   integrity sha1-hxDXrwqmJvj/+hzgAWhUUmMlV0g=
 
-merge-descriptors@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.0.tgz#2169cf7538e1b0cc87fb88e1502d8474bbf79864"
-  integrity sha1-IWnPdTjhsMyH+4jhUC2EdLv3mGQ=
-
-method-override@~2.3.5:
-  version "2.3.10"
-  resolved "https://registry.yarnpkg.com/method-override/-/method-override-2.3.10.tgz#e3daf8d5dee10dd2dce7d4ae88d62bbee77476b4"
-  integrity sha1-49r41d7hDdLc59SuiNYrvud0drQ=
-  dependencies:
-    debug "2.6.9"
-    methods "~1.1.2"
-    parseurl "~1.3.2"
-    vary "~1.1.2"
+merge-descriptors@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
+  integrity sha512-cCi6g3/Zr1iqQi6ySbseM1Xvooa98N0w31jzUYrXPX2xqObmFGHJ0tQ5u74H3mVh7wLouTseZyYIq39g8cNp1w==
 
-methods@~1.1.1, methods@~1.1.2:
+methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
   integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
 
-mime-db@1.43.0, "mime-db@>= 1.43.0 < 2":
+mime-db@1.43.0:
   version "1.43.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.43.0.tgz#0a12e0502650e473d735535050e7c8f4eb4fae58"
   integrity sha512-+5dsGEEovYbT8UY9yD7eE4XTc4UwJ1jBYlgaQQF38ENsKR3wj/8q8RFZrF9WIZpB2V1ArTVFUva8sAul1NzRzQ==
 
-mime-types@~2.1.24, mime-types@~2.1.6, mime-types@~2.1.9:
+mime-db@1.52.0:
+  version "1.52.0"
+  resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.52.0.tgz#bbabcdc02859f4987301c856e3387ce5ec43bf70"
+  integrity sha512-sPU4uV7dYlvtWJxwwxHD0PuihVNiE7TyAbQ5SWxDCB9mUYvOgroQOwYQQOKPJ8CIbE+1ETVlOoK1UC2nU3gYvg==
+
+mime-types@~2.1.24:
   version "2.1.26"
   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.26.tgz#9c921fc09b7e149a65dfdc0da4d20997200b0a06"
   integrity sha512-01paPWYgLrkqAyrlDorC1uDwl2p3qZT7yl806vW7DvDoxwXi46jsjFbg+WdwotBIk6/MbEhO/dh5aZ5sNj/dWQ==
   dependencies:
     mime-db "1.43.0"
 
-mime@1.3.4:
-  version "1.3.4"
-  resolved "https://registry.yarnpkg.com/mime/-/mime-1.3.4.tgz#115f9e3b6b3daf2959983cb38f149a2d40eb5d53"
-  integrity sha1-EV+eO2s9rylZmDyzjxSaLUDrXVM=
-
-minimist@0.0.8:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/minimist/-/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
-
-mkdirp@0.5.1:
-  version "0.5.1"
-  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
-  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
+mime-types@~2.1.34:
+  version "2.1.35"
+  resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.35.tgz#381a871b62a734450660ae3deee44813f70d959a"
+  integrity sha512-ZDY+bPm5zTTF+YpCrAU9nK0UgICYPT0QtT1NZWFv4s++TNkcgVaT0g6+4R2uI4MjQjzysHB1zxuWL50hzaeXiw==
   dependencies:
-    minimist "0.0.8"
-
-morgan@~1.6.1:
-  version "1.6.1"
-  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.6.1.tgz#5fd818398c6819cba28a7cd6664f292fe1c0bbf2"
-  integrity sha1-X9gYOYxoGcuiinzWZk8pL+HAu/I=
-  dependencies:
-    basic-auth "~1.0.3"
-    debug "~2.2.0"
-    depd "~1.0.1"
-    on-finished "~2.3.0"
-    on-headers "~1.0.0"
+    mime-db "1.52.0"
 
-ms@0.7.1:
-  version "0.7.1"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.1.tgz#9cd13c03adbff25b65effde7ce864ee952017098"
-  integrity sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg=
-
-ms@0.7.2:
-  version "0.7.2"
-  resolved "https://registry.yarnpkg.com/ms/-/ms-0.7.2.tgz#ae25cf2512b3885a1d95d7f037868d8431124765"
-  integrity sha1-riXPJRKziFodldfwN4aNhDESR2U=
+mime@1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/mime/-/mime-1.6.0.tgz#32cd9e5c64553bd58d19a568af452acff04981b1"
+  integrity sha512-x0Vn8spI+wuJ1O6S7gnbaQg8Pxh4NNHb7KSINmEWKiPE4RKOplvijn+NkmYmmRgP68mc70j2EbeTFRsrswaQeg==
 
 ms@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
   integrity sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g=
 
-multiparty@3.3.2:
-  version "3.3.2"
-  resolved "https://registry.yarnpkg.com/multiparty/-/multiparty-3.3.2.tgz#35de6804dc19643e5249f3d3e3bdc6c8ce301d3f"
-  integrity sha1-Nd5oBNwZZD5SSfPT473GyM4wHT8=
-  dependencies:
-    readable-stream "~1.1.9"
-    stream-counter "~0.2.0"
+ms@2.1.3:
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.3.tgz#574c8138ce1d2b5861f0b44579dbadd60c6615b2"
+  integrity sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA==
 
 nan@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/nan/-/nan-1.0.0.tgz#ae24f8850818d662fcab5acf7f3b95bfaa2ccf38"
   integrity sha1-riT4hQgY1mL8q1rPfzuVv6oszzg=
 
-negotiator@0.5.3:
-  version "0.5.3"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.5.3.tgz#269d5c476810ec92edbe7b6c2f28316384f9a7e8"
-  integrity sha1-Jp1cR2gQ7JLtvntsLygxY4T5p+g=
-
-negotiator@0.6.2:
-  version "0.6.2"
-  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
-  integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
+negotiator@0.6.3:
+  version "0.6.3"
+  resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.3.tgz#58e323a72fedc0d6f9cd4d31fe49f51479590ccd"
+  integrity sha512-+EUsqGPLsM+j/zdChZjsnX51g4XrHFOIXwfnCVPGlQk/k5giakcKsuxCObBRu6DSm9opw/O6slWbJdghQM4bBg==
 
 on-finished@~2.3.0:
   version "2.3.0"
@@ -476,158 +270,102 @@ on-finished@~2.3.0:
   dependencies:
     ee-first "1.1.1"
 
-on-headers@~1.0.0, on-headers@~1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.2.tgz#772b0ae6aaa525c399e489adfad90c403eb3c28f"
-  integrity sha512-pZAE+FJLoyITytdqK0U5s+FIpjN0JP3OzFi/u8Rx+EV5/W+JTWGXG8xFzevE7AjBfDqHv/8vL8qQsIhHnqRkrA==
-
 options@>=0.0.5:
   version "0.0.6"
   resolved "https://registry.yarnpkg.com/options/-/options-0.0.6.tgz#ec22d312806bb53e731773e7cdaefcf1c643128f"
   integrity sha1-7CLTEoBrtT5zF3Pnza788cZDEo8=
 
-parseurl@~1.3.0, parseurl@~1.3.1, parseurl@~1.3.2:
+parseurl@~1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
   integrity sha512-CiyeOxFT/JZyN5m0z9PfXw4SCBJ6Sygz1Dpl0wqjlhDEGGBP1GnsUVEL0p63hoG1fcj3fHynXi9NYO4nWOL+qQ==
 
-pause@0.1.0:
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/pause/-/pause-0.1.0.tgz#ebc8a4a8619ff0b8a81ac1513c3434ff469fdb74"
-  integrity sha1-68ikqGGf8LioGsFRPDQ0/0af23Q=
+path-to-regexp@0.1.7:
+  version "0.1.7"
+  resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
+  integrity sha512-5DFkuoqlv1uYQKxy8omFBeJPQcdoE07Kv2sferDCrAq1ohOU+MSDswDIbnx3YAM60qIOnYa53wBhXW0EbMonrQ==
 
 policyfile@0.0.4:
   version "0.0.4"
   resolved "https://registry.yarnpkg.com/policyfile/-/policyfile-0.0.4.tgz#d6b82ead98ae79ebe228e2daf5903311ec982e4d"
   integrity sha1-1rgurZiueeviKOLa9ZAzEeyYLk0=
 
-proxy-addr@~1.0.8:
-  version "1.0.10"
-  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-1.0.10.tgz#0d40a82f801fc355567d2ecb65efe3f077f121c5"
-  integrity sha1-DUCoL4Afw1VWfS7LZe/j8HfxIcU=
+proxy-addr@~2.0.7:
+  version "2.0.7"
+  resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-2.0.7.tgz#f19fe69ceab311eeb94b42e70e8c2070f9ba1025"
+  integrity sha512-llQsMLSUDUPT44jdrU/O37qlnifitDP+ZwrmmZcoSKyLKvtZxpyV0n2/bD/N4tBAAZ/gJEdZU7KMraoK1+XYAg==
   dependencies:
-    forwarded "~0.1.0"
-    ipaddr.js "1.0.5"
+    forwarded "0.2.0"
+    ipaddr.js "1.9.1"
 
-qs@4.0.0:
-  version "4.0.0"
-  resolved "https://registry.yarnpkg.com/qs/-/qs-4.0.0.tgz#c31d9b74ec27df75e543a86c78728ed8d4623607"
-  integrity sha1-wx2bdOwn33XlQ6hseHKO2NRiNgc=
+qs@6.9.7:
+  version "6.9.7"
+  resolved "https://registry.yarnpkg.com/qs/-/qs-6.9.7.tgz#4610846871485e1e048f44ae3b94033f0e675afe"
+  integrity sha512-IhMFgUmuNpyRfxA90umL7ByLlgRXu6tIfKPpF5TmcfRLlLCckfP/g3IQmju6jjpu+Hh8rA+2p6A27ZSPOOHdKw==
 
-random-bytes@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/random-bytes/-/random-bytes-1.0.0.tgz#4f68a1dc0ae58bd3fb95848c30324db75d64360b"
-  integrity sha1-T2ih3Arli9P7lYSMMDJNt11kNgs=
-
-range-parser@~1.0.2, range-parser@~1.0.3:
-  version "1.0.3"
-  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.0.3.tgz#6872823535c692e2c2a0103826afd82c2e0ff175"
-  integrity sha1-aHKCNTXGkuLCoBA4Jq/YLC4P8XU=
+range-parser@~1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.1.tgz#3cf37023d199e1c24d1a55b84800c2f3e6468031"
+  integrity sha512-Hrgsx+orqoygnmhFbKaHE6c296J+HTAQXoxEF6gNupROmmGJRoyzfG3ccAveqCBrwr/2yxQ5BVd/GTl5agOwSg==
 
-raw-body@~2.1.2:
-  version "2.1.7"
-  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.1.7.tgz#adfeace2e4fb3098058014d08c072dcc59758774"
-  integrity sha1-rf6s4uT7MJgFgBTQjActzFl1h3Q=
+raw-body@2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.4.3.tgz#8f80305d11c2a0a545c2d9d89d7a0286fcead43c"
+  integrity sha512-UlTNLIcu0uzb4D2f4WltY6cVjLi+/jEN4lgEUj3E04tpMDpUlkBo/eSn6zou9hum2VMNpCCUone0O0WeJim07g==
   dependencies:
-    bytes "2.4.0"
-    iconv-lite "0.4.13"
+    bytes "3.1.2"
+    http-errors "1.8.1"
+    iconv-lite "0.4.24"
     unpipe "1.0.0"
 
-readable-stream@~1.1.8, readable-stream@~1.1.9:
-  version "1.1.14"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-1.1.14.tgz#7cf4c54ef648e3813084c636dd2079e166c081d9"
-  integrity sha1-fPTFTvZI44EwhMY23SB54WbAgdk=
-  dependencies:
-    core-util-is "~1.0.0"
-    inherits "~2.0.1"
-    isarray "0.0.1"
-    string_decoder "~0.10.x"
-
 redis@0.7.3:
   version "0.7.3"
   resolved "https://registry.yarnpkg.com/redis/-/redis-0.7.3.tgz#ee57b7a44d25ec1594e44365d8165fa7d1d4811a"
   integrity sha1-7le3pE0l7BWU5ENl2BZfp9HUgRo=
 
-response-time@~2.3.1:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/response-time/-/response-time-2.3.2.tgz#ffa71bab952d62f7c1d49b7434355fbc68dffc5a"
-  integrity sha1-/6cbq5UtYvfB1Jt0NDVfvGjf/Fo=
-  dependencies:
-    depd "~1.1.0"
-    on-headers "~1.0.1"
+safe-buffer@5.2.1:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
-rndm@1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/rndm/-/rndm-1.2.0.tgz#f33fe9cfb52bbfd520aa18323bc65db110a1b76c"
-  integrity sha1-8z/pz7Urv9UgqhgyO8ZdsRCht2w=
-
-send@0.13.0:
-  version "0.13.0"
-  resolved "https://registry.yarnpkg.com/send/-/send-0.13.0.tgz#518f921aeb0560aec7dcab2990b14cf6f3cce5de"
-  integrity sha1-UY+SGusFYK7H3KspkLFM9vPM5d4=
-  dependencies:
-    debug "~2.2.0"
-    depd "~1.0.1"
-    destroy "1.0.3"
-    escape-html "1.0.2"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    mime "1.3.4"
-    ms "0.7.1"
-    on-finished "~2.3.0"
-    range-parser "~1.0.2"
-    statuses "~1.2.1"
+"safer-buffer@>= 2.1.2 < 3":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
+  integrity sha512-YZo3K82SD7Riyi0E1EQPojLz7kpepnSQI9IyPbHHg1XXXevb5dJI7tpyN2ADxGcQbHG7vcyRHk0cbwqcQriUtg==
 
-send@0.13.2:
-  version "0.13.2"
-  resolved "https://registry.yarnpkg.com/send/-/send-0.13.2.tgz#765e7607c8055452bba6f0b052595350986036de"
-  integrity sha1-dl52B8gFVFK7pvCwUllTUJhgNt4=
+send@0.17.2:
+  version "0.17.2"
+  resolved "https://registry.yarnpkg.com/send/-/send-0.17.2.tgz#926622f76601c41808012c8bf1688fe3906f7820"
+  integrity sha512-UJYB6wFSJE3G00nEivR5rgWp8c2xXvJ3OPWPhmuteU0IKj8nKbG3DrjiOmLwpnHGYWAVwA69zmTm++YG0Hmwww==
   dependencies:
-    debug "~2.2.0"
-    depd "~1.1.0"
+    debug "2.6.9"
+    depd "~1.1.2"
     destroy "~1.0.4"
+    encodeurl "~1.0.2"
     escape-html "~1.0.3"
-    etag "~1.7.0"
-    fresh "0.3.0"
-    http-errors "~1.3.1"
-    mime "1.3.4"
-    ms "0.7.1"
+    etag "~1.8.1"
+    fresh "0.5.2"
+    http-errors "1.8.1"
+    mime "1.6.0"
+    ms "2.1.3"
     on-finished "~2.3.0"
-    range-parser "~1.0.3"
-    statuses "~1.2.1"
+    range-parser "~1.2.1"
+    statuses "~1.5.0"
 
-serve-favicon@~2.3.0:
-  version "2.3.2"
-  resolved "https://registry.yarnpkg.com/serve-favicon/-/serve-favicon-2.3.2.tgz#dd419e268de012ab72b319d337f2105013f9381f"
-  integrity sha1-3UGeJo3gEqtysxnTN/IQUBP5OB8=
-  dependencies:
-    etag "~1.7.0"
-    fresh "0.3.0"
-    ms "0.7.2"
-    parseurl "~1.3.1"
-
-serve-index@~1.7.2:
-  version "1.7.3"
-  resolved "https://registry.yarnpkg.com/serve-index/-/serve-index-1.7.3.tgz#7a057fc6ee28dc63f64566e5fa57b111a86aecd2"
-  integrity sha1-egV/xu4o3GP2RWbl+lexEahq7NI=
+serve-static@1.14.2:
+  version "1.14.2"
+  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.14.2.tgz#722d6294b1d62626d41b43a013ece4598d292bfa"
+  integrity sha512-+TMNA9AFxUEGuC0z2mevogSnn9MXKb4fa7ngeRMJaaGv8vTwnIEkKi+QGvPt33HSnf8pRS+WGM0EbMtCJLKMBQ==
   dependencies:
-    accepts "~1.2.13"
-    batch "0.5.3"
-    debug "~2.2.0"
+    encodeurl "~1.0.2"
     escape-html "~1.0.3"
-    http-errors "~1.3.1"
-    mime-types "~2.1.9"
-    parseurl "~1.3.1"
-
-serve-static@~1.10.0:
-  version "1.10.3"
-  resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.10.3.tgz#ce5a6ecd3101fed5ec09827dac22a9c29bfb0535"
-  integrity sha1-zlpuzTEB/tXsCYJ9rCKpwpv7BTU=
-  dependencies:
-    escape-html "~1.0.3"
-    parseurl "~1.3.1"
-    send "0.13.2"
+    parseurl "~1.3.3"
+    send "0.17.2"
+
+setprototypeof@1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.2.0.tgz#66c9a24a73f9fc28cbe66b09fed3d33dcaf1b424"
+  integrity sha512-E5LDX7Wrp85Kil5bhZv46j8jOeboKq5JMmYM3gVGdGH8xFpPWXUMsNrlODCrkoxMEeNi/XZIwuRvY4XNwYMJpw==
 
 socket.io-client@0.9.16:
   version "0.9.16"
@@ -650,39 +388,22 @@ socket.io@0.9.x:
   optionalDependencies:
     redis "0.7.3"
 
-statuses@1:
+"statuses@>= 1.5.0 < 2", statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
-  integrity sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow=
-
-statuses@~1.2.1:
-  version "1.2.1"
-  resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.2.1.tgz#dded45cc18256d51ed40aec142489d5c61026d28"
-  integrity sha1-3e1FzBglbVHtQK7BQkidXGECbSg=
-
-stream-counter@~0.2.0:
-  version "0.2.0"
-  resolved "https://registry.yarnpkg.com/stream-counter/-/stream-counter-0.2.0.tgz#ded266556319c8b0e222812b9cf3b26fa7d947de"
-  integrity sha1-3tJmVWMZyLDiIoErnPOyb6fZR94=
-  dependencies:
-    readable-stream "~1.1.8"
-
-string_decoder@~0.10.x:
-  version "0.10.31"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-0.10.31.tgz#62e203bc41766c6c28c9fc84301dab1c5310fa94"
-  integrity sha1-YuIDvEF2bGwoyfyEMB2rHFMQ+pQ=
+  integrity sha512-OpZ3zP+jT1PI7I8nemJX4AKmAX070ZkYPVWV/AaKTJl+tXCTGyVdC1a4SL8RUQYEwk/f34ZX8UTykN68FwrqAA==
 
 tinycolor@0.x:
   version "0.0.1"
   resolved "https://registry.yarnpkg.com/tinycolor/-/tinycolor-0.0.1.tgz#320b5a52d83abb5978d81a3e887d4aefb15a6164"
   integrity sha1-MgtaUtg6u1l42Bo+iH1K77FaYWQ=
 
-tsscmp@1.0.5:
-  version "1.0.5"
-  resolved "https://registry.yarnpkg.com/tsscmp/-/tsscmp-1.0.5.tgz#7dc4a33af71581ab4337da91d85ca5427ebd9a97"
-  integrity sha1-fcSjOvcVgatDN9qR2FylQn69mpc=
+toidentifier@1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.1.tgz#3be34321a88a820ed1bd80dfaa33e479fbb8dd35"
+  integrity sha512-o5sSPKEkg/DIQNmH43V0/uerLrpzVedkUh8tGNvaeXpfpuwjKenlSox/2O/BTlZUtEe+JG7s5YhEz608PlAHRA==
 
-type-is@~1.6.6:
+type-is@~1.6.18:
   version "1.6.18"
   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.18.tgz#4e552cd05df09467dcbc4ef739de89f2cf37c131"
   integrity sha512-TkRKr9sUTxEH8MdfuCSP7VizJyzRNMjj2J2do2Jr3Kym598JVdEksuzPQCnlFPW4ky9Q+iA+ma9BGm06XQBy8g==
@@ -695,45 +416,21 @@ uglify-js@1.2.5:
   resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-1.2.5.tgz#b542c2c76f78efb34b200b20177634330ff702b6"
   integrity sha1-tULCx29477NLIAsgF3Y0Mw/3ArY=
 
-uid-safe@2.1.4:
-  version "2.1.4"
-  resolved "https://registry.yarnpkg.com/uid-safe/-/uid-safe-2.1.4.tgz#3ad6f38368c6d4c8c75ec17623fb79aa1d071d81"
-  integrity sha1-Otbzg2jG1MjHXsF2I/t5qh0HHYE=
-  dependencies:
-    random-bytes "~1.0.0"
-
-uid-safe@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/uid-safe/-/uid-safe-2.0.0.tgz#a7f3c6ca64a1f6a5d04ec0ef3e4c3d5367317137"
-  integrity sha1-p/PGymSh9qXQTsDvPkw9U2cxcTc=
-  dependencies:
-    base64-url "1.2.1"
-
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
   integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
 
-utils-merge@1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.0.tgz#0294fb922bb9375153541c4f7096231f287c8af8"
-  integrity sha1-ApT7kiu5N1FTVBxPcJYjHyh8ivg=
-
-vary@~1.0.1:
+utils-merge@1.0.1:
   version "1.0.1"
-  resolved "https://registry.yarnpkg.com/vary/-/vary-1.0.1.tgz#99e4981566a286118dfb2b817357df7993376d10"
-  integrity sha1-meSYFWaihhGN+yuBc1ffeZM3bRA=
+  resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"
+  integrity sha512-pMZTvIkT1d+TFGvDOqodOclx0QWkkgi6Tdoa8gC8ffGAAqz9pzPTZWAybbsHHoED/ztMtkv/VoYTYyShUn81hA==
 
 vary@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.2.tgz#2299f02c6ded30d4a5961b0b9f74524a18f634fc"
   integrity sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=
 
-vhost@~3.0.1:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/vhost/-/vhost-3.0.2.tgz#2fb1decd4c466aa88b0f9341af33dc1aff2478d5"
-  integrity sha1-L7HezUxGaqiLD5NBrzPcGv8keNU=
-
 ws@0.4.x:
   version "0.4.32"
   resolved "https://registry.yarnpkg.com/ws/-/ws-0.4.32.tgz#787a6154414f3c99ed83c5772153b20feb0cec32"