Socket: Move protocol into the socket body (as private base class) and allow non-const protocol access

Implemented SENF_ASSERT and replaced all occurences of BOOST_ASSERT with SENF_ASSERT
Packets: Fixed compile-error (missing namespace prefix) in PacketParser.cci

https://svn.berlios.de/svnroot/repos/senf/branches/socket-cleanup

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  r573 | g0dil | 2007-12-18 12:15:23 +0100 (Tue, 18 Dec 2007) | 6 lines
  
  Socket: Replace 'SocketProtocol::body()' member with 'fh()' and 'fd()' members
  Socket: Rename ConvertibleString to StreamableString and use 'operator<<' instead of 'operator='
  Socket: some minor documentation clarifications
  Socket/Protocols/UN: Removed unneeded UNAddress
  Socket/Protocols/UN: Fixed UNSocketAddress to adhere to the GenericAddressingPolicy requirements
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  r577 | g0dil | 2007-12-18 13:08:27 +0100 (Tue, 18 Dec 2007) | 1 line
  
  Socket/Protocols/UN: Add all_includes.hh to svn:ignore
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Unified emacs Local Variables

Renaned directory satscons to senfscons

added listen to ConnectedCommunicationPolicy
added primitive doxygen documentation
cleaned up naming of some files
fixed INetProtocol.cc (missing const modifiers)
removed SocketProtcolHelper in favor of directly inheriting SocketProtocol virtually
moved implementation of TCPv4SocketProtocol virtual methods into the base classes
added rudimentary testing of the TCPv4SocketHandle protocol interface
finalized PacketSocketHandle

started ClientSocketHandle generic interface

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