Was broken for batch mode - fixed.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10857 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Was broken for batch mode - fixed.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10858 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Fixed an NPE that would occur when a directory was chosen when loading a file and the Invoke options dialog checkbox was selected.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10859 e0a1b77d-ad91-4216-81b1-defd5f83fa92
Fixed an NPE that would occur when a directory was chosen when loading a file and the Invoke options dialog checkbox was selected.

git-svn-id: https://svn.cms.waikato.ac.nz/svn/weka@10860 e0a1b77d-ad91-4216-81b1-defd5f83fa92