Upd strophejs (changed npm dependency)

Author: dimaspirit

package.json

@@ -44,7 +44,7 @@
     "crypto-js": "3.1.2-2",
     "jquery": "^2.2.0",
     "request": "^2.48.0",
-    "strophe": "~1.2.4",
+    "strophe.js": "^1.2.8",
     "xml2js": "^0.4.13"
   },
   "devDependencies": {