Fixed bug significantly affecting results when nominal attributes are present. Rule growing stopped much too early.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9834 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Updated for the 1.0.3 release

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9836 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Added an option to allow the full correlation matrix to be pre-computed before the search starts (default is still to compute it lazily, as needed, during the search). Also added parallel processing functionality to be used when the correlation matrix gets pre-computed. This will speed up backward searches on large data sets.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9837 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Merge remote-tracking branch 'upstream'