Revert "Merge pull request #136 from iiirc/bundle-update"

An error occurd on Sqale.

This reverts commit 1862822cbab72f5a73d7b2bd7481a184f2b74c81, reversing
changes made to 51015cf48e93b5dcfc8dace5ceb11b96cfc027d0.
Revert "Revert "Merge pull request #136 from iiirc/bundle-update""

This reverts commit 87e6cab5eb5dc0e1a2707c0dd736286d6fe23708.
Follow Twitter gem version up
Change key
Initialize Twitter in TweetBot
Fix tests to follow Twitter gem update
Merge pull request #139 from iiirc/yet-another-update-twitter-gem

Yet another update twitter gem
Merge branch 'master' into rails-4.0.2