Added command-line option to force training in batch mode for updateable classifiers.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka/trunk@9744 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Merge remote-tracking branch 'upstream'
Merge branch 'master' of github.com:shantanusharma/weka