playing around trying to resolve issue with overhead not disappearing
added new empty controller that will hold the tweet composer
Configure overheadView so that changing its frame automatically pulls views below it up when overheadView is set to zero height.
Merge pull request #2 from timothy1ee/before-new-cell

Fix offset of views below conditionally visible retweet label.
clean up - began design on "write a tweet" view
Revert "added new tweet cell for retweets"

This reverts commit 1e191e2c4daff5d68319741d0a5a379b22a106c8.
Merge branch 'refs/heads/before-new-cell'