Update devDependencies to the latest versions

package.json

@@ -56,7 +56,7 @@
     "loopback-datasource-juggler": "^2.19.0"
   },
   "devDependencies": {
-    "browserify": "^9.0.3",
+    "browserify": "^10.0.0",
     "chai": "^2.1.1",
     "cookie-parser": "^1.3.4",
     "errorhandler": "^1.3.4",
@@ -65,7 +65,7 @@
     "grunt-browserify": "^3.5.0",
     "grunt-cli": "^0.1.13",
     "grunt-contrib-jshint": "^0.11.0",
-    "grunt-contrib-uglify": "^0.8.0",
+    "grunt-contrib-uglify": "^0.9.1",
     "grunt-contrib-watch": "^0.6.1",
     "grunt-jscs": "^1.5.0",
     "grunt-karma": "^0.10.1",