Fixing up some CheckOptionHandler failures so that maven tests will pass

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11198 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Fixing up some CheckOptionHandler failures so that maven tests will pass

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11199 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Whether scheme supports probabilities is no also correctly detected with new versions of MLR.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@11200 e0a1b77d-ad91-4216-81b1-defd5f83fa92