Reverse order of visual gears linked list
Now vgears will render in the order they have been added.
Older visual gears are rendered earlier, so they are "behind" newer visual gears.
This has been primarily done to fix the render order of speech bubbles (
bug #287).
Tweak bounce effects of some gears
This adds bounce effects for gtSMine, gtMine and gtCluster
Properly stop freezeray at bounce edge (instead of restarting the ray over and over again)