Added GSocket for Unix (only GTK for the moment)

Updated wxSocket to use GSocket API
Added a progress bar to client.cpp
Added CopyTo to wxMemoryOutputStream to copy the internal buffer to a specified buffer.
Various changes/fixes to the high-level protocols FTP/HTTP
Various Unicode fixes
Removed sckint.*


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3085 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/mstream.h

@@ -45,6 +45,8 @@ class wxMemoryOutputStream:  public wxOutputStream {
 
   wxStreamBuffer *OutputStreamBuffer() const { return m_o_streambuf; }
 
+  size_t CopyTo(char *buffer, size_t len) const;
+
  protected:
   wxStreamBuffer *m_o_streambuf;