Remove Smoke Grenade.
Implement the Lightning Gun.
Lightning Gun assets.
Get rid of progressive JPEGs.
Improve Lightning Gun sounds.
View quake, improved Rocket Launcher assets.

(FIXME: Rocket explosion doesn't fade out)
Fix rocket explosion not fading out properly.
Add view quake to more events.
Limit view quake's mangitude.
Merge branch 'newguns'

Conflicts:
	src/cgame/cg_local.h
	src/cgame/cg_main.c