Merge pull request #417 from razvand/master

Lgtm, please deploy.
I'm sorry, wtf?
Add pagination in template
Use ListView for displaying players in CPanel and add pagination
Merge pull request #420 from badescunicu/master

Add pagination to players list in CPanel. Thanks Nicu! Fixes #418
Clear models too
Add south database migration. Fix #424
workshop: add a reference to the TA for each workshop semigroup.
workshop: Set teaching assistant when creating a semigroup.
workshops: list all semigroups and my semigroups, for easier access
update readme about south.
workshops: add a status view for single workshop
Hide other student's review when grading a workshop
Move README.rst to README.md
Fix block formatting in README file
Improve block quotes indentation in README file
cpanel: whitespace
cpanel: add a separate player details view.
Merge pull request #426 from badescunicu/issue_403

Hide other student's review when grading a workshop
Fix minor coding style