diff --git a/Pipfile.lock b/Pipfile.lock
index c8b847a..f36108a 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -34,10 +34,10 @@
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
+                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
             ],
-            "version": "==1.11.0"
+            "version": "==1.14.0"
         },
         "sqlalchemy": {
             "hashes": [
@@ -50,10 +50,10 @@
     "develop": {
         "atomicwrites": {
             "hashes": [
-                "sha256:0312ad34fcad8fac3704d441f7b317e50af620823353ec657a53e981f92920c0",
-                "sha256:ec9ae8adaae229e4f8446952d204a3e4b5fdd2d099f9be3aaf556120135fb3ee"
+                "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4",
+                "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"
             ],
-            "version": "==1.2.1"
+            "version": "==1.3.0"
         },
         "attrs": {
             "hashes": [
@@ -72,17 +72,18 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:48d39675b80a75f6d1c3bdbffec791cf0bbbab665cf01e20da701c77de278718",
-                "sha256:73d26f018af5d5adcdabf5c1c974add4361a9c76af215fe32fdec8a6fc5fb9b9"
+                "sha256:44f69771e2ac81ff30d929d485b7f9919f3ad6d019b6b20c74f3b8687c3f70df",
+                "sha256:aa8b870d0f46965bac2c073a93444636b0e1ca74e9777e34f03dd494b8a59d48"
             ],
-            "version": "==3.0.2"
+            "index": "pypi",
+            "version": "==3.1.1"
         },
         "certifi": {
             "hashes": [
-                "sha256:339dc09518b07e2fa7eda5450740925974815557727d6bd35d319c1524a04a4c",
-                "sha256:6d58c986d22b038c8c0df30d639f23a3e6d172a05c3583e766f4c0b785c0986a"
+                "sha256:017c25db2a153ce562900032d5bc68e9f191e44e9a0f762f373977de9df1fbb3",
+                "sha256:25b64c7da4cd7479594d035c08c2d809eb4aab3a26e5a990ea98cc450c320f1f"
             ],
-            "version": "==2018.10.15"
+            "version": "==2019.11.28"
         },
         "chardet": {
             "hashes": [
@@ -93,25 +94,32 @@
         },
         "decorator": {
             "hashes": [
-                "sha256:2c51dff8ef3c447388fe5e4453d24a2bf128d3a4c32af3fabef1f01c6851ab82",
-                "sha256:c39efa13fbdeb4506c476c9b3babf6a718da943dab7811c206005a4a956c080c"
+                "sha256:54c38050039232e1db4ad7375cfce6748d7b41c29e95a081c8a6d2c30364a2ce",
+                "sha256:5d19b92a3c8f7f101c8dd86afd86b0f061a8ce4540ab8cd401fa2542756bce6d"
             ],
-            "version": "==4.3.0"
+            "version": "==4.4.1"
         },
         "docutils": {
             "hashes": [
-                "sha256:02aec4bd92ab067f6ff27a38a38a41173bf01bed8f89157768c1573f53e474a6",
-                "sha256:51e64ef2ebfb29cae1faa133b3710143496eca21c530f3f71424d77687764274",
-                "sha256:7a4bd47eaf6596e1295ecb11361139febe29b084a87bf005bf899f9a42edc3c6"
+                "sha256:0c5b78adfbf7762415433f5515cd5c9e762339e23369dbe8000d84a4bf4ab3af",
+                "sha256:c2de3a60e9e7d07be26b7f2b00ca0309c207e06c100f9cc2a94931fc75a478fc"
             ],
-            "version": "==0.14"
+            "version": "==0.16"
         },
         "idna": {
             "hashes": [
-                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
-                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
+                "sha256:7588d1c14ae4c77d74036e8c22ff447b26d0fde8f007354fd48a7814db15b7cb",
+                "sha256:a068a21ceac8a4d63dbfd964670474107f541babbd2250d61922f029858365fa"
             ],
-            "version": "==2.7"
+            "version": "==2.9"
+        },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302",
+                "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==1.5.0"
         },
         "ipython": {
             "hashes": [
@@ -130,33 +138,32 @@
         },
         "jedi": {
             "hashes": [
-                "sha256:0191c447165f798e6a730285f2eee783fff81b0d3df261945ecb80983b5c3ca7",
-                "sha256:b7493f73a2febe0dc33d51c99b474547f7f6c0b2c8fb2b21f453eef204c12148"
+                "sha256:b4f4052551025c6b0b0b193b29a6ff7bdb74c52450631206c262aef9f7159ad2",
+                "sha256:d5c871cb9360b414f981e7072c52c33258d598305280fef91c6cae34739d65d5"
             ],
-            "version": "==0.13.1"
+            "version": "==0.16.0"
         },
         "more-itertools": {
             "hashes": [
-                "sha256:c187a73da93e7a8acc0001572aebc7e3c69daf7bf6881a2cea10650bd4420092",
-                "sha256:c476b5d3a34e12d40130bc2f935028b5f636df8f372dc2c1c01dc19681b2039e",
-                "sha256:fcbfeaea0be121980e15bc97b3817b5202ca73d0eae185b4550cbfce2a3ebb3d"
+                "sha256:5dd8bcf33e5f9513ffa06d5ad33d78f31e1931ac9a18f33d37e77a180d393a7c",
+                "sha256:b1ddb932186d8a6ac451e1d95844b382f55e12686d51ca0c68b6f61f2ab7a507"
             ],
-            "version": "==4.3.0"
+            "version": "==8.2.0"
         },
         "parso": {
             "hashes": [
-                "sha256:35704a43a3c113cce4de228ddb39aab374b8004f4f2407d070b6a2ca784ce8a2",
-                "sha256:895c63e93b94ac1e1690f5fdd40b65f07c8171e3e53cbd7793b5b96c0e0a7f24"
+                "sha256:56b2105a80e9c4df49de85e125feb6be69f49920e121406f15e7acde6c9dfc57",
+                "sha256:951af01f61e6dccd04159042a0706a31ad437864ec6e25d0d7a96a9fbb9b0095"
             ],
-            "version": "==0.3.1"
+            "version": "==0.6.1"
         },
         "pexpect": {
             "hashes": [
-                "sha256:2a8e88259839571d1251d278476f3eec5db26deb73a70be5ed5dc5435e418aba",
-                "sha256:3fbd41d4caf27fa4a377bfd16fef87271099463e6fa73e92a52f92dfee5d425b"
+                "sha256:0b48a55dcb3c05f3329815901ea4fc1537514d6ba867a152b581d69ae3710937",
+                "sha256:fc65a43959d153d0114afe13997d439c22823a27cefceb5ff35c2178c6784c0c"
             ],
             "markers": "sys_platform != 'win32'",
-            "version": "==4.6.0"
+            "version": "==4.8.0"
         },
         "pickleshare": {
             "hashes": [
@@ -167,25 +174,25 @@
         },
         "pkginfo": {
             "hashes": [
-                "sha256:5878d542a4b3f237e359926384f1dde4e099c9f5525d236b1840cf704fa8d474",
-                "sha256:a39076cb3eb34c333a0dd390b568e9e1e881c7bf2cc0aee12120636816f55aee"
+                "sha256:7424f2c8511c186cd5424bbf31045b77435b37a8d604990b79d4e70d741148bb",
+                "sha256:a6d9e40ca61ad3ebd0b72fbadd4fba16e4c0e4df0428c041e01e06eb6ee71f32"
             ],
-            "version": "==1.4.2"
+            "version": "==1.5.0.1"
         },
         "pluggy": {
             "hashes": [
-                "sha256:447ba94990e8014ee25ec853339faf7b0fc8050cdc3289d4d71f7f410fb90095",
-                "sha256:bde19360a8ec4dfd8a20dcb811780a30998101f078fc7ded6162f0076f50508f"
+                "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0",
+                "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"
             ],
-            "version": "==0.8.0"
+            "version": "==0.13.1"
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:c1d6aff5252ab2ef391c2fe498ed8c088066f66bc64a8d5c095bbf795d9fec34",
-                "sha256:d4c47f79b635a0e70b84fdb97ebd9a274203706b1ee5ed44c10da62755cf3ec9",
-                "sha256:fd17048d8335c1e6d5ee403c3569953ba3eb8555d710bfc548faf0712666ea39"
+                "sha256:46642344ce457641f28fc9d1c9ca939b63dadf8df128b86f1b9860e59c73a5e4",
+                "sha256:e7f8af9e3d70f514373bf41aa51bc33af12a6db3f71461ea47fea985defb2c31",
+                "sha256:f15af68f66e664eaa559d4ac8a928111eebd5feda0c11738b5998045224829db"
             ],
-            "version": "==2.0.7"
+            "version": "==2.0.10"
         },
         "ptyprocess": {
             "hashes": [
@@ -196,17 +203,17 @@
         },
         "py": {
             "hashes": [
-                "sha256:bf92637198836372b520efcba9e020c330123be8ce527e535d185ed4b6f45694",
-                "sha256:e76826342cefe3c3d5f7e8ee4316b80d1dd8a300781612ddbc765c17ba25a6c6"
+                "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa",
+                "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"
             ],
-            "version": "==1.7.0"
+            "version": "==1.8.1"
         },
         "pygments": {
             "hashes": [
-                "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
-                "sha256:dbae1046def0efb574852fab9e90209b23f556367b5a320c0bcb871c77c3e8cc"
+                "sha256:2a3fe295e54a20164a9df49c75fa58526d3be48e14aceba6d6b1e8ac0bfd6f1b",
+                "sha256:98c8aa5a9f778fcd1026a17361ddaf7330d1b7c62ae97c3bb0ae73e0b9b6b0fe"
             ],
-            "version": "==2.2.0"
+            "version": "==2.5.2"
         },
         "pytest": {
             "hashes": [
@@ -225,38 +232,38 @@
         },
         "requests": {
             "hashes": [
-                "sha256:65b3a120e4329e33c9889db89c80976c5272f56ea92d3e74da8a463992e3ff54",
-                "sha256:ea881206e59f41dbd0bd445437d792e43906703fff75ca8ff43ccdb11f33f263"
+                "sha256:43999036bfa82904b6af1d99e4882b560e5e2c68e5c4b0aa03b655f3d7d73fee",
+                "sha256:b3f43d496c6daba4493e7c431722aeb7dbc6288f52a6e04e7b6023b0247817e6"
             ],
-            "version": "==2.20.1"
+            "version": "==2.23.0"
         },
         "requests-toolbelt": {
             "hashes": [
-                "sha256:42c9c170abc2cacb78b8ab23ac957945c7716249206f90874651971a4acff237",
-                "sha256:f6a531936c6fa4c6cfce1b9c10d5c4f498d16528d2a54a22ca00011205a187b5"
+                "sha256:380606e1d10dc85c3bd47bf5a6095f815ec007be7a8b69c878507068df059e6f",
+                "sha256:968089d4584ad4ad7c171454f0a5c6dac23971e9472521ea3b6d49d610aa6fc0"
             ],
-            "version": "==0.8.0"
+            "version": "==0.9.1"
         },
         "six": {
             "hashes": [
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
+                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
+                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
             ],
-            "version": "==1.11.0"
+            "version": "==1.14.0"
         },
         "tqdm": {
             "hashes": [
-                "sha256:3c4d4a5a41ef162dd61f1edb86b0e1c7859054ab656b2e7c7b77e7fbf6d9f392",
-                "sha256:5b4d5549984503050883bc126280b386f5f4ca87e6c023c5d015655ad75bdebb"
+                "sha256:0d8b5afb66e23d80433102e9bd8b5c8b65d34c2a2255b2de58d97bd2ea8170fd",
+                "sha256:f35fb121bafa030bd94e74fcfd44f3c2830039a2ddef7fc87ef1c2d205237b24"
             ],
-            "version": "==4.28.1"
+            "version": "==4.43.0"
         },
         "traitlets": {
             "hashes": [
-                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
-                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
+                "sha256:70b4c6a1d9019d7b4f6846832288f86998aa3b9207c6821f3578a6a6a467fe44",
+                "sha256:d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7"
             ],
-            "version": "==4.3.2"
+            "version": "==4.3.3"
         },
         "twine": {
             "hashes": [
@@ -268,17 +275,17 @@
         },
         "urllib3": {
             "hashes": [
-                "sha256:61bf29cada3fc2fbefad4fdf059ea4bd1b4a86d2b6d15e1c7c0b582b9752fe39",
-                "sha256:de9529817c93f27c8ccbfead6985011db27bd0ddfcdb2d86f3f663385c6a9c22"
+                "sha256:2f3db8b19923a873b3e5256dc9c2dedfa883e33d87c690d9c7913e1f40673cdc",
+                "sha256:87716c2d2a7121198ebcb7ce7cccf6ce5e9ba539041cfbaeecfb641dc0bf6acc"
             ],
-            "version": "==1.24.1"
+            "version": "==1.25.8"
         },
         "wcwidth": {
             "hashes": [
-                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
-                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+                "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603",
+                "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"
             ],
-            "version": "==0.1.7"
+            "version": "==0.1.8"
         },
         "webencodings": {
             "hashes": [
@@ -286,6 +293,13 @@
                 "sha256:b36a1c245f2d304965eb4e0a82848379241dc04b865afcc4aab16748587e1923"
             ],
             "version": "==0.5.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2",
+                "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"
+            ],
+            "version": "==3.0.0"
         }
     }
 }