vehicles now get a "side" variable set, when spawned, which indicates "civ","adac","med","cop" or"reb".MORE:

everybody can now trigger sirenlights and siren when in cop/medic(/adac) cars.
Moved aliases to a later position.
Made zamak skin available
Merge branch 'westerland2' of github.com:ishigu/altis into westerland2