Adding SESSION_SECRET settings to the broker and console

These aren't really used today but we need to get users to stop using the
default rails secrets.
Bug 928142
Merge pull request #1789 from brenton/master

Adding SESSION_SECRET settings to the broker and console
clean deployments
Fixing retry logic of rest-domains.feature tests to not run F18-only tests on RHEL and vice-versa
https://bugzilla.redhat.com/show_bug.cgi?id=928382
Merge pull request #1825 from bdecoste/master

Merged by openshift-bot
Add ATLAS devel libs to bring up a newer version of numpy.
Merge pull request #1824 from kraman/bz928382

Merged by openshift-bot
Merge pull request #1828 from rmillner/mathlibs

Add ATLAS devel libs to bring up a newer version of numpy.