Fixed issue character limit issue.
Merge remote-tracking branch 'upstream/release-6.2' into release-6.2

* upstream/release-6.2:
  default empty resource thumbnail image issue fixed in library pages
  fixed Already Exists popup is not showing while add same url on "Add Resource"
  Default image issue resolved in resource search
  Teachable Moments Course meta data updated for the content display in RUSD library
  Multiple answer data log: Session tracking API implemented for Multiple answer question types
  Privacy Policy some text updates
Merge pull request #109 from anilgooru/release-6.2

Fixed issue character limit issue.