Update mocha dependency version

Author: simeg

package.json

@@ -50,13 +50,12 @@
     "gulp-uglify": "^1.2.0",
     "gulp-webpack": "^1.5.0",
     "jsdom": "^7.0.2",
-    "mocha": "^2.2.5",
+    "mocha": "^3.2.0",
     "moment": ">=2.16.0",
     "pre-commit": "^1.1.3",
     "react": ">=0.13",
     "react-addons-test-utils": ">=0.13",
     "react-dom": ">=0.13",
-    "react-tools": "^0.13.2",
     "typescript": "^2.0.10",
     "webpack": "^1.5.1",
     "webpack-dev-server": "^1.7.0"