More churn.

 * Galaxy map header alignment fix.
 * Abort if 'c m /x,y' style input passed to 'move' command (incomplete fix;
   'm 5,5 5,5' still does silly things). Hat tip to a stout for finding this.
 * Less noise during compile.
 * Move phaser fire code into zapgun() possibly for testing and/or min/maxing.