Using course ID regex from set

- API now use same regex as the rest of LMS
- Content regex includes the period (.) character
Merge pull request #306 from edx-solutions/clintonb/api-cleanup

Using course ID regex from set
set PROGRESS_DETACHED_CATEGORIES for prod environments
Merge pull request #310 from edx-solutions/derf/progress_detached_categories_setting

set PROGRESS_DETACHED_CATEGORIES for prod environments
mattdrayer/api-2632-fix: Filter out zero completions entries
Merge pull request #312 from edx-solutions/mattdrayer/api-2632-fix

mattdrayer/api-2632-fix: Filter out zero completions entries
ziafazal/api-fix-progress-avg-greater-than-100: fix progress value more than 100
drag-n-drop: Update hash
Merge pull request #319 from edx-solutions/mattdrayer/release-PR317

ziafazal/api-fix-progress-avg-greater-than-100: fix progress value more ...
mattdrayer/api-2632-fix: Fixed bugs related to proforma grade calculation/retrieval
Merge pull request #327 from edx-solutions/solutions-release

mattdrayer/api-2632-fix: Fixed bugs related to proforma grade calculatio...
ziafazal/api-time-series-invalid-data: fix negative values in users_not_started
tie into the xblock publish API point for progress and grading events

Conflicts:
	lms/djangoapps/progress/models.py
tie into the xblock publish API point for progress and grading events
Merge pull request #337 from edx-solutions/derf/rc_2014-12-01

Merge in to release for  2014 12 01 deploy
Added unique css class to "Visible To" dropdown wrapper so that it can be targeted by css rules