Move Applications tab before Libraries tab.
Improve return_if_fail.
Partly implement appdefaults UI.
Replace usage of EnableWindow with clearer enable/disable macros.

programs/winecfg/winecfg.c

diff --git a/programs/winecfg/winecfg.c b/programs/winecfg/winecfg.c
index c8b5409..516440c 100644
--- a/programs/winecfg/winecfg.c
+++ b/programs/winecfg/winecfg.c
@@ -22,7 +22,6 @@
  * TODO:   (in rough order of priority)
  *   - A mind bogglingly vast amount of stuff
  *
- *   - Complete X11DRV page, so all controls are hooked up
  *   - Implement autodetect for drive configuration
  *   - Figure out whether we need the virtual vs real drive selection stuff at the top of the property page
  *   - Implement explicit mode vs instant-apply mode
@@ -36,6 +35,10 @@
  *   Minor things that should be done someday:
  *   - Make the desktop size UI a combo box, with a Custom option, so it's more obvious what you might want to choose here
  *
+ * BUGS:
+ *   - WineLook default fallback doesn't work
+ *   - x11drv page triggers key writes on entry
+ *
  */
 
 #include <assert.h>
@@ -94,7 +97,7 @@
         }
         goto end;
     }
-    
+
     res = RegQueryValueExA( hSubKey, valueName, NULL, NULL, NULL, &dataLength);
     if( res == ERROR_FILE_NOT_FOUND ) {
         WINE_TRACE("Value not present - using default\n");