app_meetme: Adding test events for following activity in MeetMe.

........

Merged revisions 371919 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 371920 from http://svn.asterisk.org/svn/asterisk/branches/10
........

Merged revisions 371921 from http://svn.asterisk.org/svn/asterisk/branches/11


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@371922 65c4cc65-6c06-0410-ace0-fbb531ad65f3