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

include/wx/html/htmlwin.h

@@ -85,7 +85,7 @@ public:
     // specify document location, use LoadPage() istead
     // Return value : FALSE if an error occured, TRUE otherwise
     bool SetPage(const wxString& source);
-    
+
     // Append to current page
     bool AppendToPage(const wxString& source);
 
@@ -175,14 +175,14 @@ public:
     // Called when user clicked on hypertext link. Default behavior is to
     // call LoadPage(loc)
     virtual void OnLinkClicked(const wxHtmlLinkInfo& link);
-    
-    // Called when wxHtmlWindow wants to fetch data from an URL (e.g. when 
-    // loading a page or loading an image). The data are downloaded if and only if 
+
+    // Called when wxHtmlWindow wants to fetch data from an URL (e.g. when
+    // loading a page or loading an image). The data are downloaded if and only if
     // OnOpeningURL returns TRUE. If OnOpeningURL returns wxHTML_REDIRECT,
     // it must set *redirect to the new URL
-    virtual wxHtmlOpeningStatus OnOpeningURL(wxHtmlURLType type,
-                                             const wxString& url,
-                                             wxString *redirect) const 
+    virtual wxHtmlOpeningStatus OnOpeningURL(wxHtmlURLType WXUNUSED(type),
+                                             const wxString& WXUNUSED(url),
+                                             wxString *WXUNUSED(redirect)) const
         { return wxHTML_OPEN; }
 
 protected: