Update some test dev dependencies

Author: leebyron

package.json

@@ -45,14 +45,14 @@
     "babel-runtime": "^5.8.x",
     "babel-core": "5.8.22",
     "babel-eslint": "4.1.8",
-    "chai": "3.4.1",
-    "coveralls": "2.11.6",
+    "chai": "3.5.0",
+    "coveralls": "2.11.14",
     "eslint": "1.10.3",
     "eslint-plugin-babel": "2.2.0",
     "flow-bin": "0.32.0",
     "isparta": "3.0.3",
-    "mocha": "2.3.4",
-    "sane": "1.3.0"
+    "mocha": "3.0.2",
+    "sane": "1.4.1"
   },
   "typings": "index.d.ts"
 }