Merge pull request #11 from tuminoid/season2013

Season2013
Merge branch 'season2013' of https://github.com/tuminoid/SFL-disc-golf-engine into season2013
Fixed event sign up and competitor adding restrictions based on A and B licenses.
Fixed bug on waiting list and added club name for user listing.
Removed couple inner joins.
Added Waitinglist and Event_views_visibility tables to _install_db.sgl.