* Addition of channels serialiser.
* New channels interface.
* Added Channels to startup code.
* New CFG Id for serialiser.
* Cleanup of old channels stuff from interfaces.
* Cleanup of messages as well.
* Changed file size to uint64_t
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@620 b45a01b8-16f6-495d-af2f-9b41ad6348cc