(svn r10092) -Codechange: code-seperated the spriteloader and blitter from the rest of the code

-Add: make it possible to pick your own blitter (-b <blitter>, -h for overview)
-Add: added a new optimized 8bpp blitter (default, caches sprites of all zoom-levels)
-Add: added a debug 8bpp blitter and a very slow normal 8bpp blitter

src/fontcache.cpp

@@ -399,7 +399,6 @@ const Sprite *GetGlyph(FontSize size, WChar key)
 
 	/* FreeType has rendered the glyph, now we allocate a sprite and copy the image into it */
 	sprite = (Sprite*)calloc(width * height + 8, 1);
-	sprite->info   = 1;
 	sprite->width  = width;
 	sprite->height = height;
 	sprite->x_offs = slot->bitmap_left;