Use strophe from bower packages

bower.json

@@ -15,7 +15,7 @@
     "backbone": "1.1.2",
     "backbone.browserStorage": "*",
     "backbone.overview": "*",
-    "strophe": "git@github.com:strophe/strophejs-bower.git#v1.1.3",
+    "strophe": "~1.1.3",
     "strophe.roster": "https://raw.github.com/strophe/strophejs-plugins/b1f364eb6e854ffe844c57add38e885cfeb9b498/roster/strophe.roster.js",
     "strophe.vcard": "https://raw.github.com/strophe/strophejs-plugins/f5c9e16b463610d501591452cded0359f53aae48/vcard/strophe.vcard.js",
     "strophe.disco": "https://raw.github.com/jcbrand/strophejs-plugins/75c8693992bc357c699b6d615eeb396e799f5c02/disco/strophe.disco.js",