1. removed wxObject::CopyObject() and Clone() - some objects just can't be

copied
2. made wxEvent::Clone() pure virtual and added missing Clone()s to the
   other event classes which this changes has helped to discover


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@12566 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/dialup.h

@@ -179,6 +179,9 @@ public:
     // process (i.e. does it result from our own attempt to establish the
     // connection)?
     bool IsOwnEvent() const { return m_id != 0; }
+
+    // implement the base class pure virtual
+    virtual wxEvent *Clone() const { return new wxDialUpEvent(*this); }
 };
 
 // the type of dialup event handler function