Added another test case from #571.
Updated the output of TapParser::processTestLine.
Broke TapParser::parse down in simpler methods.
TapParser: ignore leading garbage and properly complain on missing TAP log.
TapParser: detect and report duplicated TAP log.
TapParser: got rid of the "test" and "suite" values.
They are only available with PHPUnit.
TapParser: append the message from yaml diagnostic to existing message.
Reworked the dispaly of test results.
PHPUnit plugin: pretty print test data.
