Color cycling based on the ranges in Grad menu. A speed slider has appeared. The speed data (and all cycling) is loaded from IFF/ILBM images from Deluxe Paint, Amiga and DOS versions. The data is not saved at the moment, so you shouldn't re-save cycling images

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1573 416bcca6-2ee7-4201-b75f-2eb2f807beb1

src/sdlscreen.c

@@ -47,6 +47,8 @@
   #endif
 #endif
 
+volatile int Allow_colorcycling=1;
+
 /// Sets the new screen/window dimensions.
 void Set_mode_SDL(int *width, int *height, int fullscreen)
 {