chore(package): update eslint to version 2.5.2

http://greenkeeper.io/

Author: greenkeeperio-bot

package.json

@@ -38,7 +38,7 @@
     "bunyan": "^1.5.1",
     "chai": "^3.4.1",
     "coveralls": "^2.11.4",
-    "eslint": "^2.5.0",
+    "eslint": "^2.5.2",
     "istanbul": "^0.4.2",
     "jscs": "^2.5.1",
     "mkdirp": "^0.5.1",