activeadmin/activeadmin — pull request #3616 by aderyabin (2014-11-13 22:45:35+00:00)
Title: update contributing guide to use Rails 4.1.7

Unfortunately, although the contributing guide appears to run under the 4.0.0, a large number of tests fail.
Also, I suggest to update contributing guide to use Rails 4.1.7 because Travis run AA with this version and tests pass.