Helper for a random sign added
Grunts now warp in.
Grunts not shown before they warp in.
Merge branch 'master' into specialeffects-ernir

Conflicts:
	index.html
Rudimentary explosions for the Grunts added. Still not done: Generalization and integration with other particles.
Merge branch 'master' into specialeffects-ernir
Temporary hack to remove the 'cross' on explosions!
Warp particles now managed by the entitymanager.
Particle logic moved over to the enemies
Hulks now warp in
Merge branch 'master' into specialeffects-ernir

Conflicts:
	index.html
Spheroids now warp in and explode
Brains now warp in and explode
Quarks now warp in and explode
Enforcers, Tanks and Progs now explode on death.
Merge branch 'specialeffects-ernir'