changed shotorg positions for most weapons, they are now all inside the

changed shotorg positions for most weapons, they are now all inside the
player bounding box, and most are the same (15 8 -8), only the poorly
placed nex, hagar, and rocket launcher models are other values
changed electro shots to use EF_LOWPRECISION, EF_FULLBRIGHT, and removed
EF_ADDITIVE and glow_size From the secondary shots, they're now much
more obvious and quicker to render
changed mortar shots to be EF_LOWPRECISION

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@1545 f962a42d-fe04-0410-a3ab-8c8b0445ebaa