[FIX] Prevent db error when trying to create new dummy level when dummy level already exists. Also prevent dummy level blank perm from showing in list of perms.
[FIX] Prevent db error when trying to create new dummy level when dummy level already exists. Also prevent dummy level blank perm from showing in list of perms.


git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@8468 b456876b-0849-0410-b77d-98878d47e9d5

changi67/tiki,oregional/tiki,oregional/tiki,oregional/tiki,changi67/tiki,tikiorg/tiki,tikiorg/tiki,tikiorg/tiki,changi67/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki