Fix ToRGB/ToRGBA possible accuracy loss.

It was always like this, but not used as much before.  Shifts are fast and
it eneds to sum anyway, there should not be any benefit to multiplying as
floats, and it will probably lose accuracy.
Execute android profiler on Exit.
Workaround for #5652: Force size to 0 if negative.

Should be fairly safe, and passes tests nicely.
Update lang
Improve logging in sceSasSetVoice
Update native with improvement to kb nav fixing #5680
Update native with workaround for #5648 (immersive mode volume key issue)
Update README for v0.9.8
Make a string translatable in tilt settings dialog
Merge remote-tracking branch 'upstream/master' into fps2

Conflicts:
	lang
	native