turbo links 対応で、 javascript の読み込みを head 内に移動 close #21
close #22
needs https://github.com/seyhunak/twitter-bootstrap-rails/pull/568 for Rails4
close #20 close #17
Merge commit '1076f4e645538557686c75b6a6f2a98cb00bc463' into bug_fixes
close #16
close #14
Merge pull request #27 from heartrails/#14-#16

#14 #16
Merge branch 'master' into not_deploy_on_pull_req