CYB-195.  Do not clobber user share preferences on app start.
Merge pull request #104 from coyote/dont_clobber_user_share_pref

CYB-195.  Do not clobber user share preferences on app start.
CYB-207 - Instructors are not seeing Instructor view on EngagementIndex and PointsConfiguration

https://jira.ets.berkeley.edu/jira/browse/CYB-207
Merge pull request #105 from christianv/CYB-207

CYB-207 - Instructors are not seeing Instructor view on EngagementIndex and PointsConfiguration
CYB-193 Must handle a Video URL submission.