Re-fixed issue 14 (with the file modification status being incorrectly reported).
Removed debugging code.
Merge pull request #27 from purpleplatypus/reissue14

Re-fixed issue 14.
Started adding a table
Merge branch 'master' into issue3
Added combo boxes for event type and event season
Figured out how to use spinners in the cells, more problems await
Added the event year cell editor that is needed
Started working on how to get the events into the new table, and laid out how I think it should be implemented
First samples events are now loaded into the table, next is all the change listeners
The events are now changed when you change the sample
Removed a redraw the seemed to lag the program and wasn't needed
Started the change listener for the start event year
Started adding more to change listeners, but there's big problems
Finally figured out how to handle the years
The combo boxes are now handled in the table, instead of their own change listeners
Some cleanup, stopped user from reordering the columns
Added the delete button, some cleanup
Put everything into constants (Scanlan would be proud)
Removed event panel