Work in progress; does not compile!
Moved script registration function to static gamedll libs instead, and used a pointer callback approach for calling them to avoid duplicate symbols during linkage.
The function 'FireWeaponBolt' calls 'CreateWeaponBolt' to create a bolt entity, but it can return NULL. 'FireWeaponBolt' does NOT check for NULL and derefs the pointer regardless. This rarely happens though; in all cases, it was caused by a defect in scripts. Code has been hooked to throw an engine error instead of crashing.
