Update 0.9.9f8: 11 new vehicles and quality improvements

Hi everyone,

Here's the changelogs for latest version:

New features:

Added Sdkfz 251 'Hanomag'.
Added M8 Grayhound.
Added M12 Gun Motor Carriage.
Added M3 Half-Track and AA variant.
Added Daimler MKII.
Added Type 93 Armoured Car.
Added Type 95 Scout Car.
Added Japanese mortar.
Added 2 Japanese 'auto-transport' boats.
Added new greek church model.

Fixes:

Improved blood fxs.
Improved vehicle driving system.
Improved vehicle's AI.
US Marine medics changed to 'Corpsman'.
Other smaller fixes.