add bigbluebutton-client/src/conf/config.xml
 Changes to be committed:
	deleted:    config.xml
	modified:   .gitignore
the Public and Option chat tabs now match the selected locale at all times
added check to make sure tabs exist
Merge pull request #248 from SenecaCDOT-BigBlueButton/fix-chattab-localization

Fix chattab localization
Merge remote-tracking branch 'upstream/master'