Update _bower.json

so you can use the app client as a github page

Author: nleir

app/templates/_bower.json

@@ -15,7 +15,7 @@
     "font-awesome": ">=4.1.0",
     "lodash": "~2.4.1"<% if(filters.socketio) { %>,
     "angular-socket-io": "~0.6.0"<% } %><% if(filters.uirouter) { %>,
-    "angular-ui-router": "~0.2.10"<% } %>
+    "angular-ui-router": "~0.2.15"<% } %>
   },
   "devDependencies": {
     "angular-mocks": ">=1.2.*",