August 30 update

-Added a message once fuel runs out to clarify player's options in that state

-Inverted the function of F and G keys; F now returns in the treasure selection and G advances the selection.

-Added a self destruct function (Hold ESC key)  to be used when there are no treasures left and the player wants to avoid waiting the countdown
     -This function can also be used to self destruct at any given time