Merge wxQT branch into the trunk.

This merges in the latest sources from GSoC 2014 wxQt project with just a few
minor corrections, mostly undoing wrong changes to common files in that branch
(results of a previous bad merge?) and getting rid of whitespace-only changes.
Also remove debug logging from wxGrid.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@77455 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gauge.h

@@ -26,6 +26,8 @@
 
 // Win32 only, is default (and only) on some other platforms
 #define wxGA_SMOOTH          0x0020
+// QT only, display current completed percentage (text default format "%p%")
+#define wxGA_TEXT            0x0040
 
 // GTK and Mac always have native implementation of the indeterminate mode
 // wxMSW has native implementation only if comctl32.dll >= 6.00
@@ -109,6 +111,8 @@ protected:
     #include "wx/gtk1/gauge.h"
 #elif defined(__WXMAC__)
     #include "wx/osx/gauge.h"
+#elif defined(__WXQT__)
+    #include "wx/qt/gauge.h"
 #endif
 
 #endif // wxUSE_GAUGE