Add .json to GET /contents/UUID@draft
Update GET /contents functional test to check against every field
Add 'version': 'draft' to document
Rename Document.contents to Document.content
Change default language from en-us to en
Rename Document.summary to Document.abstract
Return "application/vnd.org.cnx.module" for Document mediaType
Add CORS headers Access-Control-Allow-Credentials and Access-Control-Allow-Origin
Merge pull request #8 from Connexions/fixes

Fixes - data model and security