Only beam laser deferred lights work, cannons and rockets dont

[beherith]

Only beam laser deferred lights work, cannons and rockets dont

[Bluestone]

For me cannons & beamlasers show lights, but rockets don't, tested with corraid and corhrk. I don't know what its meant to look like for rockets, so don't think I can fix.

[beherith]

For rockets the light should be white, but subdued. corhrk is hard to see, try armjanus or armrock, as that shoots close to ground.

[Bluestone]

http://imolarpg.dyndns.org/trac/balatest/browser/branches/BAR/luaui/widgets/gfx_deferred_rendering.lua#L533 this check fails, tested with janus

[Bluestone]

As far as i can see, the height based checks for point light projectiles were just wrong (y was absolute height, not height above map. Could figure out what they were supposed to do, so removed them.