Enable sign out
Merge branch 'enable-sign-out'
Fork selected repository
Merge branch 'fork-repository'
Delete repo if exists
Merge branch 'delete-repo-if-exists'
Remove cancel button
Merge branch 'delete-cancel-button'
Tweak submit button

* Use submit_tag helper method instead of raw html tag
* Use disable_with
Merge branch 'tweak-submit'