Change package name for version3-alpha, and reorganize user data directories

@paulscode @Gillou68310 @xperia64 

Submitting this formally to give you guys a chance to weigh in if you want.  I will defer to Paul to merge the request.  See discussion here for background:
http://www.paulscode.com/forum/index.php?topic=1130.msg13602#msg13602

BTW screenshots are excellent!!