Merges from Scitech Branch (George Davison):

Added wxDisplayChangedEvent and triggering in MSW, when display mode changes
this event gets triggered. I don't know what should happen with other OS's
since I am not familiar with how they handle mode changes.

Watcome Version 11 now compiles with wide character support.

Fixed watcom warnings in
	html/htmlwin.h
	imagbmp.h
	listctrl.h
	imagbmp.cpp
	quantize.cpp
	strconv.cpp
	variant.cpp
	dirctrlg.cpp
	treectlg.cpp
	m_style.cpp
	fontenum.cpp
	listctrl.cpp
	ole\dataobj.cpp
	textctrl.cpp
	window.cpp
	xml.cpp

msw/setup.h
	with watcom version 11 it now compiles with wide character support.

xrc/xml.cpp
	fixed memory leak and compile warnings


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@14057 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/dirctrlg.cpp

@@ -407,7 +407,7 @@ static int LINKAGEMODE wxDirCtrlStringCompareFunction(const void *first, const v
 {
     wxString *strFirst = (wxString *)first;
     wxString *strSecond = (wxString *)second;
-    
+
     return strFirst->CmpNoCase(*strSecond);
 }
 
@@ -454,7 +454,7 @@ bool wxDirItemData::HasSubDirs() const
     return dir.HasSubDirs();
 }
 
-bool wxDirItemData::HasFiles(const wxString& spec) const
+bool wxDirItemData::HasFiles(const wxString& WXUNUSED(spec)) const
 {
     if (m_path.IsEmpty())
         return FALSE;
@@ -578,8 +578,8 @@ void wxGenericDirCtrl::Init()
 void wxGenericDirCtrl::ShowHidden( bool show )
 {
     m_showHidden = show;
-    
-    // reparse FIXME 
+
+    // reparse FIXME
 }
 
 void wxGenericDirCtrl::AddSection(const wxString& path, const wxString& name, int imageId)