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/common/quantize.cpp

@@ -334,7 +334,7 @@ typedef my_cquantizer * my_cquantize_ptr;
 
 void
 prescan_quantize (j_decompress_ptr cinfo, JSAMPARRAY input_buf,
-          JSAMPARRAY output_buf, int num_rows)
+          JSAMPARRAY WXUNUSED(output_buf), int num_rows)
 {
   my_cquantize_ptr cquantize = (my_cquantize_ptr) cinfo->cquantize;
   register JSAMPROW ptr;
@@ -1284,7 +1284,7 @@ finish_pass1 (j_decompress_ptr cinfo)
 
 
 void
-finish_pass2 (j_decompress_ptr cinfo)
+finish_pass2 (j_decompress_ptr WXUNUSED(cinfo))
 {
   /* no work */
 }