Bump version of Strophe.js so that we get the new UUID generator

bower.json

@@ -28,7 +28,7 @@
     "fontawesome": "~4.1.0",
     "typeahead.js": "https://raw.githubusercontent.com/jcbrand/typeahead.js/eedfb10505dd3a20123d1fafc07c1352d83f0ab3/dist/typeahead.jquery.js",
     "skeleton-sass": "~2.0.3",
-    "strophejs": "1.2.2",
+    "strophejs": "1.2.3",
     "strophejs-plugins": "https://github.com/strophe/strophejs-plugins.git#amd",
     "bourbon": "~4.2.3"
   },