Try to avoid jruby being included twice in the war. This will save quite a bit of size on the resulting war.

https://github.com/jruby/warbler/issues/171
Upgrade will_paginate to avoid XSS security hole
Rails has a security upgrade to 3.2.16. No functional changes, so hopefully nothing to adjust in our app
Update a bunch of the test gems only. Let's see if that helps our jenkins build errors.