openshift/origin-server — pull request #5485 by antonioparisi (2014-06-06 16:32:51+00:00)
Title: Bug 1105660 - ActiveModel::Obserservs moved out from rails > 4.0

Bug 1105660
Bugzilla link
From rails > 4.0, ActiveModel::Observers has moved out as a gem
`rails-observers` .
And having a project using rails > 4.0 will broke the `ctl_app`.