entities.inc: Changed Entity_GetAbsOrigin to use Prop_Send to receive the entity origin.

Conflicts:
	scripting/include/smlib/edicts.inc
math.inc: Added Math_MakeVector
math.inc: Added Math_RotateVector
effects.inc: Added Effect_DrawBeamBoxRotatableToClient
effects.inc: Added Effect_DrawBeamBoxRotatableToAll
effects.inc: Added Effect_DrawBeamBoxRotatable
effects.inc: Added Effect_DrawAxisOfRotationToClient
effects.inc: Added Effect_DrawAxisOfRotationToAll
effects.inc: Added Effect_DrawAxisOfRotation
Merge pull request #17 from chanz/feature-newfunctions

Merged new functions from Chanz