#479 API tests: filtering / sorting column name modifications
Merge branch 'dev' of github.com:devbridge/BetterCMS into dev
#479 Created JSON serializer for incoming requests and models for each request
Merge branch 'dev' of github.com:devbridge/BetterCMS into dev
#479 Created test for data member / data contract attributes; added data contrct attributes to all models / requests / responses