API: Create new API on get.
API: correct and improve API.
API: split ApiVIew in 2 CBS for post and get.
API: set content type to json/jsonp.
API: prepare tests to work for GET as well.
tests: add tests for GET API method.
api: fix some pep8 warnings.
api: test inspire themes for both public and local.
api: fix unraised exception.
api: use only keyword arguments when calling api methods.
Merge branch 'new_api'