Clean up running conformance tests

[wmdietl]

#10 adds supports for running on conformance tests.

The fastest way was to duplicate the fields and have two @Test methods.
This seems a bit ugly, as the build.gradle file looks like two separate tests are run with different configurations.
But both tests are run with the same environment, just the different tests look at different parts.
Maybe this could be done more nicely, at least by removing the fields and setting this more cleanly.

Also note that deps isn't needed for samples, so clean that up, too.

[Haibo-S]

I have made some changes in this pull request: #24