GRIM: Enable alpha test when drawing sprites.
GRIM: Fix the color key value in TinyGL.
Merge pull request #1049 from Akz-/grim-colorkey-fix

GRIM: Fix the color key value in TinyGL.
Merge pull request #1041 from Akz-/grim-sprite-fix

GRIM: Enable alpha test when drawing sprites.
GRIM/EMI: Fix word wrapping in the case when there are no spaces in the text.

This always caused a buffer overflow before.
GRIM/EMI: Do not add the character X offsets to the string length.