Refreshed devDependencies

Author: ryu1kn

.codeclimate.yml

@@ -1,7 +1,7 @@
 engines:
   eslint:
     enabled: true
-    channel: "eslint-3"
+    channel: "eslint-4"
   fixme:
     enabled: true
 ratings:

package.json

@@ -79,14 +79,14 @@
     "clipboardy": "1.1.2"
   },
   "devDependencies": {
-    "chai": "^3.5.0",
-    "codeclimate-test-reporter": "^0.4.0",
-    "eslint": "^2.12.0",
-    "eslint-config-xo": "^0.15.0",
-    "istanbul": "^0.4.4",
-    "mocha": "^2.5.3",
-    "sinon": "^1.17.4",
-    "sinon-chai": "^2.8.0",
-    "vscode": "^0.11.0"
+    "chai": "^4.1.2",
+    "codeclimate-test-reporter": "^0.5.0",
+    "eslint": "^4.9.0",
+    "eslint-config-xo": "^0.19.0",
+    "istanbul": "^0.4.5",
+    "mocha": "^4.0.1",
+    "sinon": "^4.0.1",
+    "sinon-chai": "^2.14.0",
+    "vscode": "^1.1.6"
   }
 }