Added tag functionality for submission view
Merge branch 'tagging' of git://github.com/MarkUsProject/Markus into tagging
Improved CSS organization and first prototype of results view tagging
Improved Results Prototype for Tagging
Merge pull request #1853 from bmuscede/tagging

Addition of Tagging Features for Submissions & Results Views
Merge pull request #1854 from nathanychow/tagging

migration files
tagging: added some backend logic to create and retrieve tags.  made changes to the migration files