add twitter gem
add twitter application setting link spec to administrator menu.
add link to administrator menu.
add Twitter link path spec and TwitterLink model.
execute bundle update
add twitter_links_controller
implements twitter_link show form.
add twitter_link model validates consumer_key spec.
implements consumer_key validates.
add consumer_secret validates spec.
implements encrypt method to twitter_link model.
implements twitter_link model.
update rails to 3.2.11
therubyracer gem change.
asset precompile is false
add review comment.
Merge branch 'master' into apply_review_result
install pow and add refactoring memo and implements notice_add method.
add achieve_massage to milestone model. and refactoring weight_logs_controller.
add join_effective_notification method to notification model. and display notifiction on weight_logs_controller.