Update Project and ProjectContent to match Brian's model

Gets rid of content field on Project API response and instead merges
the translated strings for the requested language into the API response
Add Project Content Endpoint For Translation

Partial solution for #122
Convert Strings to Symbols

cause MRI is picky
Constantize Project Content Params
Remove unused Gems

closes #217
remove sass sheet
Remove coffee file and turbolinks references
Add Specs for translation scope and predicate
Add specs for new translator and primary predicates
Re-add JQuery
Merge pull request #218 from edpaget/remove-gems

Remove unused Gems
Merge pull request #215 from edpaget/project-content-update

Project content update
Track Subject Location and Metadata Changes

Closes #47
Test if resource_name is defined first
Correctly create polymorphic link for versioned item
Only test api links if they've been defined
Merge pull request #213 from edpaget/subject-versions

Track Subject Location and Metadata Changes
Add uglifier gem back
Merge pull request #220 from edpaget/uglifier

Add uglifier gem back
Install Sidekiq