UC-70 Messaging changes

* Changed message key prefixes from facebookclient- to fbconnect-
* Copied over all messages from FBConnect extension to FacebookClient
* Fixed some wfMessage uses without an output format
* Added some (but not all) qqq

https://wikia-inc.atlassian.net/browse/UC-70
Per convo, we'll just delete these since they're not being used in the new extension.