Pragmatic move: copied a file from sufia that was moved from sufia-models into regular sufia gem
Pulls in Curate's implementation of linked_resources.  This seems over-complicated, so setting it aside.
Currently has tests that fail on access controls stuff -- no access controls are set up for Worthwhile::LinkedResources
Don't test using raise_rescue_response_type
Use the local properties datastream to avoid a deprecation warning
Give create access to LinkedResources
Fix authorizing parent rights for linked resources
Ignoring linked_resources support for now.
Adds LinkedResource support from Curate, but does not add a controller or actor for them -- they only get added or viewed as attachments on a Work.  Might want to make the underlying model simpler in the future. refs 65
Adds DownloadsController and minimal Catalog view overrides from Curate
 !! 3 tests for DownloadsController are failing
Sets action_dispatch.rescue_responses for common errors and access denials.
gently aligning with bootstrap3
pulls in javascript and css from curate
bootstrap3 form-control styles
Work on styles
Don't use the dce branch of sufia in the test app
Fixed permissions tests for DownloadsController