Change ControllerTestCase to IntegrationTestCase.
Get AddAction tests to pass using new IntegrationTestCase.

Revisit skipped tests later.
Cleanup
Update EditActionTest to use IntegrationTestCase
Update index action testcase.
Update delete action tests
Update view action tests
Make CrudComponentTest extend TestCase.
Fix CS errors
Ignoring lines doesn't seem to work as expected with phpcs 1.5.6
We are CS error free.
Merge pull request #231 from FriendsOfCake/cake3-integrationtest

Cake3 integrationtest