WIP fixing reverts
changed for detailed_results
Implemented the detailed results page
Detailed results feature commit issue #581
Merge remote-tracking branch 'upstream/master'

Conflicts:
	codalab/apps/web/models.py
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
deleted scores.txt
deleted: 0021_auto__add_field_competitionsubmission_detailed_results_file.py
added competitionsubmission_detailed_results_file to migrations
removed checking of key in downloadable_files by mistake
Merge pull request #591 from prags/master

Implemented detailed results html output page #581