* wxSocket fixes

* wxStream: - new inheritance, new stream buffer, nearly the same API for the
              end user
            - updated other streams consequently
* wxGTK: some change to make it compile on GTK 1.0 and GTK 1.1
* small changes on wxThread to prepare a more reentrant lib
* wxVariant works with wxStream too now


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@829 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/datstrm.h

@@ -18,7 +18,7 @@
 
 #include <wx/stream.h>
 
-class wxDataInputStream: public virtual wxFilterInputStream {
+class wxDataInputStream: public wxFilterInputStream {
 public:
   wxDataInputStream(wxInputStream& s);
   virtual ~wxDataInputStream();
@@ -31,7 +31,7 @@ public:
   wxString ReadString();
 };
 
-class wxDataOutputStream: public virtual wxFilterOutputStream {
+class wxDataOutputStream: public wxFilterOutputStream {
  public:
   wxDataOutputStream(wxOutputStream& s);
   virtual ~wxDataOutputStream();
@@ -44,11 +44,5 @@ class wxDataOutputStream: public virtual wxFilterOutputStream {
   void WriteString(const wxString& string);
 };
 
-class wxDataStream: public wxDataInputStream, public wxDataOutputStream,
-                    public wxFilterStream {
- public:
-  wxDataStream(wxStream& stream);
-};
-
 #endif
     // _WX_DATSTREAM_H_