1. wxTextCtrl::SetBackgroundColour() now works

2. wxListBox::SetBackgroundColour() now does something, although still not
   what I'd like
3. wxColour() now has a ctor from "const char *" to allow calls like
   SetBackgroundColour("green");
4. controls sample modified to use colors


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@872 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/gtk/textctrl.h

@@ -102,7 +102,8 @@ class wxTextCtrl: public wxControl, public streambuf
     wxTextCtrl& operator<<(const char c);
 
     void SetFont( const wxFont &font );
-    
+    virtual void SetBackgroundColour(const wxColour &colour);
+
   // implementation    
     
     GtkWidget* GetConnectWidget(void);