Added language sidebar generation
fixed deprecated method call
Merge branch 'dev' of https://github.com/codeflash/codeflash into dev
Added achievement model tests
Merge branch 'dev' of ssh://personal/codeflash/codeflash into dev
Less db queries
Merge branch 'dev' of https://github.com/codeflash/codeflash into dev
Properly sorted language list
Updated links for achievements
Merge branch 'dev' of ssh://personal/codeflash/codeflash into dev
Added buttons to the problem page
Switched from chosen to select2
Added categories field to problmes form
Problems can now have categories added
fixed tests
Merge branch 'feature/category_problem' into dev
added solution buttons
Changed the navbar for profile
changed before_filter to before_action
Added test for the category Model