changed all te_ effects (except te_bloodshower) to pointparticles()

changed all te_ effects (except te_bloodshower) to pointparticles()
calls (or trailparticles in one case)
reworked all effects and named them properly
restored nexuiz 2.3 effects so old demos will play exactly as they used
to (except for trail effects which are upgraded)
tweaked W_SetupShot calls, w_shotorg is now trustworthy and
muzzleflashes appear in the correct location

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@3227 f962a42d-fe04-0410-a3ab-8c8b0445ebaa