upgrade libs

package.json

@@ -114,7 +114,7 @@
     "sass-loader": "^6.0.3",
     "socket.io": "^2.0.3",
     "socket.io-client": "^2.0.3",
-    "style-loader": "^0.18.2",
+    "style-loader": "^0.19.0",
     "swig-templates": "^2.0.2",
     "toastr": "^2.1.2",
     "uglifycss": "^0.0.27",
@@ -128,7 +128,7 @@
     "colors": "^1.1.2",
     "commander": "^2.11.0",
     "easy-livereload": "^1.2.0",
-    "mocha": "^3.5.0",
+    "mocha": "^4.0.0",
     "morgan": "^1.8.2",
     "node-dev": "^3.1.3",
     "sinon": "^4.0.0",