Merge branch 'release/v140407' into develop
Fixed deprecated import
Added missing watchdog dev requirement
Implemented language property for storing Babel-compliant language codes
Implemented revision tracking for requests
Added data migration for request revisions
Update flask warts to latest alpha
Implemented request proofing form
Added shortcut properties for displaying human-friendly language names
Request proofing web interface and extended info on request page
Add timestamp when setting content, and fix current_revision bug
Fixed styling for h3
Added language properties to Revision model
Added listing of all revisions and ability to show them on request page
Improved visibility of the revision note
Merge branch 'feature/proofing' into develop
Added new directories to the README list
Include rqm and migrations packages in the build
Bumped version number
Merge branch 'release/v140409'