AC-2548: update serve-static npm to 1.14.2

Author: karyna-t

package.json.sample

@@ -32,7 +32,7 @@
     "morgan": "~1.10.0",
     "node-minify": "~3.6.0",
     "path": "~0.12.7",
-    "serve-static": "~1.14.1",
+    "serve-static": "~1.14.2",
     "squirejs": "~0.2.1",
     "strip-json-comments": "~3.1.1",
     "time-grunt": "~2.0.0",