Remove unused depencency to xcodeutils.
Describe GAV for classpathextension inside test defintion file

With this approach the test description is more selfcontained.

There is only one parameter denoting the test description. No other parameter for the GAV(s) that needs to be put on the classpath
integration tests for verification-check mojo
Validate Check tests improved + better URI handling for check definition xml
Improve verification infrastructure

createLocation is now a factory method on Location

ProtocolExcpetion is not swallowed

Fixed integration test.
Provide more integration tests for the verification infrastructure.
PreDeployMojo reacted also on artifact downloads

in deploy phase. It must only react on uploads.