Pass floating point as plzpart palette index to prevent color banding

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Plzpart shader optimization round 2

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Remove plzpart plasma indexes 3 and 4

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
Merge branch 'master' of github.com:cmatsuoka/sr-port

Conflicts:
	plzpart-gl/plz.glsl
Limit plzpart plasma duration

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>