ziafazal/api-fix-company-proficiency-avg: fix for

incorrect average calculation
Merge pull request #298 from edx-solutions/ziafazal/api-fix-company-proficiency-avg

ziafazal/api-fix-company-proficiency-avg: fix for incorrect average calculation
mattdrayer/api-update-project-fkey: Added organizations FK
mattdrayer/api-groupprofile-clean-xblockid: Migrate transitional content ids to original format
Merge pull request #299 from edx-solutions/mattdrayer/api-groupprofile-clean-xblockid

mattdrayer/api-groupprofile-clean-xblockid: Migrate transitional content...
Merge pull request #300 from edx-solutions/mattdrayer/api-update-project-fkey

mattdrayer/api-update-project-fkey: Added organizations FK
mattdrayer/api-migrate_transitional_ids: Cleaned up two additional tables
Merge pull request #302 from edx-solutions/mattdrayer/api-migrate_transitional_ids

mattdrayer/api-migrate_transitional_ids: Cleaned up two additional table...
Using course ID regex from set

- API now use same regex as the rest of LMS
- Content regex includes the period (.) character