- Updated WINGs/NEWS with info about hw the API changed how how things

are affected. Fixes for old code too.
- Double buffering in WMList. All widgets or apps using WMList and
  having user drawing porcedures in place will inherit this double
  buffering automatically too.
- New functions in WINGs: WMGetColorAlpha(), WMIsAAFont()
- Misc code cleanups in WINGs and src/dialog.c

WINGs/wfont.c

@@ -343,6 +343,12 @@ WMReleaseFont(WMFont *font)
 }
 
 
+Bool
+WMIsAAFont(WMFont *font)
+{
+    return font->antialiased;
+}
+
 
 unsigned int
 WMFontHeight(WMFont *font)