Adding redis backup script.
Adding story_hash to starred stories, user stories, and shared stories.
Fixing story hash migration to run by user.
Merge branch 'story_hash_1'

* story_hash_1:
  Fixing story hash migration to run by user.
  Adding story_hash to starred stories, user stories, and shared stories.
Merge branch 'master' into circular

* master:
  Fixing story hash migration to run by user.
  Adding story_hash to starred stories, user stories, and shared stories.
  Adding redis backup script.