- API change in WINGs for WMDraw*String().

WMDrawString() and WMDrawImageString() now take WMColor instead of GC as
  arguments. WMDrawImageString() receives 2 colors (text & background).
  This is to allow easy extension for Xft/Xrender and hide X low level details
- Added alpha channel to WMColor. 2 new functions also:
  WMCreateRGBAColor() and WMSetColorAlpha()
- Miscelaneous code cleanups in wtext.c
- Removed obsoleted acconfig.h and implemented its functionality using
  AC_DEFINE and AC_DEFINE_UNQUOTED as autoconf 2.5x recommends.
  This will definitely enforce the need to use autoconf 2.5x

src/framewin.h

@@ -82,7 +82,6 @@ typedef struct WFrameWindow {
     union WTexture **title_texture;
     union WTexture **resizebar_texture;
     unsigned long *title_pixel;
-    GC *title_gc;
     WMFont **font;
 
     char *title;		       /* window name (title) */
@@ -157,8 +156,7 @@ wFrameWindowCreate(WScreen *scr, int wlevel, int x, int y,
 		   int width, int height, int *clearance, int flags,
 		   union WTexture **title_texture, 
 		   union WTexture **resize_texture,
-		   unsigned long *color, 
-		   GC *gc, WMFont **font);
+		   unsigned long *color, WMFont **font);
 
 void wFrameWindowUpdateBorders(WFrameWindow *fwin, int flags);