Delete mailer queue because we don't use sidekiq_mailer gem and now the mailer queue doesn't exist any more.
change git to git bin path
added str-truncated to branch list to fix issue #7192
Show labels help message if last label is deleted
Fix tag tests

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Fix tests by using non-exist tag names

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>
Merge pull request #7658 from Razer6/refresh_labels_page_on_delete

Show labels help message if last label is deleted
Merge pull request #7252 from unaheidi/master

Delete mailer queue
Merge pull request #7470 from bbodenmiller/patch-1

change git to git bin path
Merge pull request #7193 from dloman/master

added htmlsafe to branch list