Log Message:
Update to 0.0.12.

CHANGES SINCE 0.0.11
* Sound playing function could segfault.  Fixed.
 (Example: hitting [Down] in main menu!)

CHANGES SINCE 0.0.10
* Converted all BMPs to indexed (256 colors or less), reducing image files
  by 1MB and removing white artifacts seen on 24bpp and 32bpp displays.
* Made some unloadable BMPs loadable again.
* Added configuration for joystick buttons and axes to Options screen.
  (Values stored in config file (e.g., ~/.defendguinrc))
* Now keeps track of your highest score.
* Displays labels ("Player 1" and "Player 2") above \ 
score/levels on
  main menu.
* Displays highest score on main menu.
* Does not display Player 2 stats on main menu after a 1-player game.
* Last scores and levels and high score are saved-to and
  loaded-from ~/.defendguinrc
* Points awarded for shooting boss.  Large bonus awarded for beating game.