More Savepoints and Bugfixing

This commit adds more savepoints to common scripts like "robPerson" or
buying some stuff. Etc some fixing of sirenLights and other stuff. Omg
its 4 oclock in the morning i seriously have no live ;P
Merge remote-tracking branch 'origin/master'

Conflicts:
	core/config/fn_vehShopLicenses.sqf