Upgraded all the gems and ran specs.

Reasoning for this is http://weblog.rubyonrails.org/2013/1/2/Rails-3-2-10--3-1-9--and-3-0-18-have-been-released/, AKA the "OMG all rails versions have  SQLI injection problem!" bug.
Merge pull request #108 from jrgifford/fix-rails-security-bug

Upgraded all the gems and ran specs.