Fixed the bug where the 'ignore' button didn't work properly after
sorting. From the TableRowSorter JavaDocs:

"JTable's row-based methods and JTable's selection model refer to the
view and not the underlying model. Therefore, it is necessary to convert
between the two."
Changed a few layouts and moved some things around. Things are looking
much better.
Minor cleanup
Finishing touches. I'm ready to give this a version number (let's start
with 0.1).