First step of trust management


 * Todo admin :
 * One gauge that empties it self in a week, and that gets full if 5 out of the seven missions are completed.
 * Todo code :
 * the gauge should be empty at the beginning
 * When the gauge is full, message of success for the player
 * Todo art :
 * make the gauge window look good
 * improve the look of the success message once it's there