== Sequencer / Color balance ==

Make the color balance inner working more accurate in the byte -> byte
case, probably also fixing (can't check I'm on 32bit) the bug mentioned 
on yellow's blog:

http://blendervse.wordpress.com/2012/04/02/waiving-the-fullrange-flag/

source/blender/blenkernel/intern/sequencer.c

@@ -1553,7 +1553,7 @@ static void make_cb_table_byte(float lift, float gain, float gamma,
 	for (y = 0; y < 256; y++) {
 		float v = color_balance_fl((float)y * (1.0f / 255.0f), lift, gain, gamma, mul);
 		CLAMP(v, 0.0f, 1.0f);
-		table[y] = v * 255;
+		table[y] = round(v * 255);
 	}
 }