chore(deps): Upgrade dependencies

Author: boopathi

package.json

@@ -36,20 +36,20 @@
     "coverageDirectory": "./coverage/"
   },
   "devDependencies": {
-    "babel-core": "^6.24.1",
+    "babel-core": "^6.25.0",
     "babel-eslint": "^7.2.3",
     "babel-jest": "^20.0.3",
     "babel-plugin-transform-es2015-block-scoping": "^6.24.1",
     "babel-preset-env": "^1.5.2",
-    "babel-traverse": "^6.24.1",
+    "babel-traverse": "^6.25.0",
     "butternut": "^0.4.6",
     "bytes": "^2.5.0",
     "chalk": "^1.1.3",
     "cli-table": "^0.3.1",
     "closure-compiler": "^0.2.12",
     "codecov": "^2.2.0",
     "commander": "^2.9.0",
-    "eslint": "^3.18.0",
+    "eslint": "^4.0.0",
     "google-closure-compiler-js": "^20170521.0.0",
     "gulp": "github:gulpjs/gulp#4.0",
     "gulp-babel": "^6.1.2",
@@ -62,6 +62,6 @@
     "prettier": "^1.4.4",
     "request": "^2.81.0",
     "through2": "^2.0.1",
-    "uglify-js": "^3.0.15"
+    "uglify-js": "^3.0.17"
   }
 }