Fix AbstractYamlTest.createAndStartApplication usage

Previously a bunch of tests were failing since the addition of `AbstractYamlTest.createAndStartApplication(String)`. This was being called instead by existing code that had previously called `AbstractYamlTest.createAndStartApplication(String, String...)` but now with different semantics: the first parameter was previously a yaml file but now was interpreted as yaml.

Also fixes `ApiDocResourceTest.testCatalogDetails`.