Removed button backgrounds for stupid Windows.

- Added application resources.
Added scroll wheel animation to configuration dialog.

- When Try or OK buttons are pressed, animation
  displays until task is complete.
Refactored/resturctured a little of the code to tidy up.

- Renamed a few methods to make them more intuitive.
- Moved methods around to group related functionality.
Created About dialog.

- Linked to menubar menu item.