49231655 Testing of n to 1 links for a single case.
49231655 More testing of n-ary linking.
49337429 Add a service description implementation and associated tests.
49231655 Rename a test scenario for clarity.
49231655 49337429 Adopt service description in tests.
49231655 49337429 Finish adoption of service description in existing
tests.
49231655 49337429 Finish adoption of service description in existing
tests.
49231655 49337429 Finish adoption of service description in existing
tests.
Merge branch 'david_rest_testing' into dan-deployment-changes

Conflicts:
	src/ggrc/__init__.py