Respond to OPTIONS with CORS headers
Add Access-Control-Allow-Headers and Access-Control-Allow-Methods
Change example allow origin to http://localhost:8000
Merge pull request #24 from Connexions/respond-to-options

Respond to options
allow for a dynamic list of allowable origin hosts
Merge pull request #25 from Connexions/multi-origin

allow for a dynamic list of allowable origin hosts
subset content for workspace return
Merge pull request #27 from Connexions/reduced-workspace

subset content for workspace return
Refactor derived from mocking code in functional tests
Add PUT /contents/uuid@draft.json test for derived content
Save resources when deriving a copy from archive
Add test for validating media type
Add subjects and keywords fields
Temporary commit to use cnx-epub fixes branch