Logger verbosity needs more control

[LarsFosdal]

I'd like to be able to exclude parameters from fixture.fullname and test.fullname in the console logger (and possibly the XML logger).

I'd also like to be able to show logged errors for failed or errored tests in the test summary.

The question is: Where is the right place to feed in verbosity settings? Should the fullname prop be a function with a verbosity level argument?