upgrade from builder-engine.com, seems like remove all version comments
change module_permissions field group to group_id
get back payment tables
Merge branch 'upgrade' of https://github.com/bill4mobile/builder-engine into upgrade
change be_posts and be_users' engine to MyISAM to support full text search
Merge branch 'upgrade' of https://github.com/bill4mobile/builder-engine into upgrade
merge upgrade branch