Fix crash when FBO_ARB is not available.

Experienced this on a Mac / SDL with a Radeon X1600.
Update langregion.ini
Merge pull request #6498 from weerawat8597/patch-1

Update langregion.ini
Update lang
Improve cross-platform savestate compat.

If 0 files are open in flash0:, which is very very common, this will make
them work the same.
Disable dithering (which affects pixel download.)

Fixes #6494.
Correct async packing alignment.

Only matters if a framebuffer width is not a multiple of 4, which might
not happen anyway.
Merge pull request #6500 from unknownbrackets/danganronpa-hack

Disable dithering
Merge remote-tracking branch 'upstream/master' into fps2

Conflicts:
	lang