Created two seperated threads instead of one. Now the FPS does not
affect gameplay anymore. Also added maxFPS functionality, later we can
show the current FPS.
Added boolean to set an FPSCap or not. Also added some info about the
way we achieve the max FPS. Found out that FPS is still affecting
gameplay, since the gamePanel counts frames on the repaint(). Moving it
to update().
Changed counting of frame to time in milliseconds. Now FPS nor ticksPS
will affect gameplay.
Ordered variables.
Jumping doesn't work yet with time.