Added clinic list filter to visit admin
Added clinic filter to admin
Merge branch 'develop' into feature/issue-17-clinic-filter-visit-admin
Updated travis to install from requirements.txt
Removed timezone awareness from fixtures since USE_TZ is false for MySQL (and this confuses SQLlite in travis)
Merge pull request #18 from praekelt/feature/issue-17-clinic-filter-visit-admin

Added clinic filter to visit admin
Merge branch 'develop' into feature/issue-18-no-user-message-id