Merge pull request #4 from cchavez/rails_4.0_upgrade

Rails 4.0 upgrade
Merge branch 'rails_4.0_upgrade' of github.com:Quoin/RapidFTR into rails_4.0_upgrade
Reverting update_attributes changes
Merge branch 'rails_4.0_upgrade' of github.com:jtoliver/RapidFTR into rails_4.0_upgrade_saving_attr_bug
Reverted some update_attribute changes
Cucumber now uses couch rest model gem instead of old plugin
Made changes to field model to output updated error format