removing display_name uniqueness across forms

 - The FormSection seeding was violating the constraint and the new CouchRest cannot be easily told to stop validating it
changing care arrangement field for uniqueness
changing couchrest depreciated field
replacing new? logic with object equality for field validation
upgrading pdf-reader to 1.3.3

 - Adding/upgrading pdf-inspector as gem instead of in vendor/plugins
getting replication tests working
using boolean instead of bool-like string in partial
swapping order of HTML attributes in test

**This test is very fragile and should probably be refactored to use a real HTML parser**
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