Merged r6098 from trunk.
Added Project#enable_module! and Project#disable_module!
Revert r6104 "Merged r6098 from trunk."
I messed things up with a cherry-pick on master, I'll re-apply it after.
replace RAILS_ROOT to Rails.root at test/test_helper.rb.
Merged r6101 from trunk.
Russian translation update by SERGEY ERSHOV.
Russian translation update by SERGEY ERSHOV (#8646).
Merged r6099 from trunk.
Added a test to ensure 'Project' column can be removed on issues list
Added a test to ensure 'Project' column can be removed on issues list (#8411)
Added Project#enable_module! and Project#disable_module! (#7115)
Merged r6096 from trunk.
pt-BR translation update by Enderson Maia.
Better translation to keep a pattern in translations.
