Don't setuid the repositories on installation
Don't setuid the repositories (Rake checks)
Fix gitlab:check recommendation

Running the recommendation would give out:
GNU find: paths must precede expression
Ability to manage and remove group as owner outside of admin area
Fix crash on team update
Merge pull request #2440 from  klamontagne/master

Don't setuid the repositories on installation
Small fixes to the installation guide and check task
Port changes from #2803
Dont allow gitlab be loaded in iframe