* Fixed jetpack usage.
* Some NPC classes now are given and use jetpacks. And the FX all works.
* Fixed "glow" in multiple shaders.
* Disabled the light I added to weapons for now to increase FPS, and because I question that it was too much.
* Added missing .shader files from basejka to the repo.
Merge branch 'rend2' of https://github.com/Stoiss/OpenJK into rend2