Time Api + basic test
Time Controller was missing from previous commmit
Adding comments to ContestController
Users in Contest API + basic test
Adding comments
Update Clarification and basic test
Updating exceptions in Authorization.php
Update Contest and basic test
Comment and visibility fixes
Merge remote-tracking branch 'remotes/origin/Frontend-Refactor'

Conflicts:
	frontend/server/bootstrap.php
	frontend/server/controllers/ClarificationController.php
	frontend/server/controllers/ProblemController.php
	frontend/server/libs/Authorization.php
Merge branch 'master' of https://github.com/omegaup/omegaup