Fix NPE on login.
Revert "Fix NPE on login."

This reverts commit 6eeac845d82cc85ba15b513d9f10f632623bcdf2.
Adding story_hash to starred stories, user stories, and shared stories.
Merge remote-tracking branch 'upstream/master'
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.
Switching to real prod database for migration.
Fix duplicate appearance of All Stories heading.
newline at end of readme
README.md typo fixes
Merge pull request #225 from ojiikun/master

Android: Fix duplicate appearance of All Stories heading
Merge pull request #226 from brainwane/master

Typofixes in README
Upping ulimit file descriptor limits.
Fixing Underscore in bookmarklet to handle sites with window.exports functionality, which breaks _. Thanks to @kyleniemeyer for finding the bug.
Updating Android from v1.3 to v1.3.1, fixing duplicate All Site Stories bug.
Using new story_hashes instead of story object ids.
Using index in msharedstory search.
Fixing Global shared stories by checking for missing story hashes properly.
Another bug found by @kyleniemeyer's story. a - b was supposed to be b - a.
Force all feed queries to use redis.