Merge pull request #542 from BSzili/master

Removed some unused RMG-related files.
[JK2SP] Kill the [NoMaterial] stages in JK2 as well.  The message comes up sometimes otherwise trying to register missing [NoMaterial] shader.
Remove unused variable.
Silence some scan-build warnings.
[MP] If target_location has a targetname set, assume its a target_position because bad mappers.
Merge pull request #544 from rohitnirmal/saber

Silence some scan-build warnings.
Merge pull request #543 from rohitnirmal/npc

Remove unused variable.