+tck testing for test skipping and fix in spec104 skipping regression

* spec104 must be skipped, and not fail for no given error publisher
* added verification that spec112 is SKIPPED as expected, for no err-pub
* missing skip exception in optionalActivePublisherTest
Merge pull request #180 from ktoso/testSkips-ktoso

+tck testing for test skipping and fix in spec104 skipping regression