Out of memory leaks on 64 bit systems Fix!

[mitra]

They have in foresee new battle mechanics but because of time necessary of testing, they canno still release them: as far I know will be:

crossbowmen will move with the weapon loaded (now they load only when the enemy is in range)
a better effect of infantry charge in wedge formation (now is not much efficient only that of cavalry work well)
Friendly fire and difference between direct and indirect fire (when the enemy view is covered be other unit or obstacles)