split Serializer to BaseSerializer and JSONSerializer. Turn serialiser an abstract class.
Let's do createResponse rather than serializeResponse.
Fix side load for single model.
Remove getApiPrefix from top controller.
Add a root attribute to model.
Add HyperlinkedJSONSerializer.
fix namespace for packages.
Use REST's getApiPrefix.
Minor update on rest server.
Minor bug fix in rest server.
Add test for rest server.
Add in more tests.
Update travis test.