fix a bug in strophe.roster plugin, it would have broken the connect function if we were needing a 'route' parameter in our connect function, as the plugin is overriding the connect function, but was not handling that 'route' parameter
Merge pull request #22 from allan-simon/fix_roster_plugin_connect_bug

fix a bug in strophe.roster plugin, it was breaking the connect function if used with 'route' parameter