Build 0209

Goddamn mouse wheel.

 - Fix failure to update scrollbar size for events list when window resizes.
 - Implement File->Exit that for a long time did nothing.  Oops.
 - Fix issue where spamming the mousewheel on the event editor would crash
   the application under Windows 7.
 - Fix issue where scrollable area less than the size of the scrollbar would
   sit at the bottom/right instead of top/left.
 - Fix issue where map piece width/height were not adjustable.

https://dl.dropboxusercontent.com/u/19968993/som/FileListing.html

https://dl.dropboxusercontent.com/u/19968993/som/build%200209/somedit0209.rar

https://dl.dropboxusercontent.com/u/19968993/som/release_notes.txt