in response to latest weapon stats

in response to latest weapon stats

sg: 6 bullets, same dmg = +20%. Slightly lower spread too
may make SG too strong. Maybe reduce start shells?

uzi: +5 dmg
should be okay, uzi is below avg

gl: +5 dmg
should bring it back in line with the others

electro primary only: +5 dmg
a very little edge

crylink: higher range
also a tiny edge for crylink

rl: +10 dmg
should bring rl back to its old glory

git-svn-id: svn://svn.icculus.org/nexuiz/trunk@6852 f962a42d-fe04-0410-a3ab-8c8b0445ebaa