tunnel through any attributes needed for the overview API

remove duplicate data
Merge pull request #93 from edx-solutions/cdodge/return-attributes-for-course-about

Cdodge/return attributes for course about
mattdrayer/api-orgdatamigration: Script to copy info from Group to Organization (including relationships)
ooyala: update hash
ooyala: update hash again
discussion: Update hash

ooyala: update hash

writing custom query set

Fixed failing test

more test and improvements to code quality
Merge pull request #99 from edx-solutions/ziafazal/fallback-to-anonymous-user

writing custom query set
Merge pull request #102 from edx-solutions/mattdrayer/api-orgdatamigration

mattdrayer/api-orgdatamigration
added organisation to users api

added id, name and created fields