NapClient, stability and improvements

Feature

• Feature: Added Response object to nap client. (hs)
• Feature: View filters now accept lists and filter on the containing elements. (hs)
• Feature: Added a method to find a view of the Api by endpoint prefix. (hs)
• Feature: Added blinker signals to SAModelController for create, update and delete actions. (hs)
• Feature: Now empty results get handled by authorization. For possible improvements see Github Issues. (hs)
• Feature: Added in process nap client and http client libraries. (hs)
• Feature: Added query as a default implemented controller and view method. (hs)

Refactor

• Refactor: Moved flask.json stuff into nap.util. (hs)
• Refactor: Model class is now responsible for creating its name. (hs)
• Refactor: SQLConstraintsValidator now doesn't get applied if a field is creating default values. (hs)
• Refactor: Now errors that get transmitted as json use camelized keys. (hs)

Cleanup

• Cleanup: Removed a print statement from caching_query. (hs)

Minor

• Minor: Added main python script to run the test API. (hs)

Generic exception handling

• Feature: Handling other exceptions by returning json responses (hs)

Initial release

Features

• Tableless and SqlAlchemy models
• Controllers for both model types
• Views for both model types
• API Blueprint
• API versioning support
• Authorization for Actions of Identities on Controllers through Roles
• Exception handling
• JSON de- and encoding
• Custom model serializers
• Model validation
• Prebuilt validators
• Chainable response filters for views
• Prebuilt filters
• 100% code coverage in tests