Squeleton code for the global routing matrix. Most functions are left unimplemented, but
the basic structure is here. Functions have been added to serialise both SHA1 and floats.
The router is not yet enabled since protocol is likely to change again.




git-svn-id: svn://svn.code.sf.net/p/retroshare/code/trunk@6886 b45a01b8-16f6-495d-af2f-9b41ad6348cc
added copy-rs-link to SubFileItem (Patch from Phenom)

git-svn-id: svn://svn.code.sf.net/p/retroshare/code/trunk@6887 b45a01b8-16f6-495d-af2f-9b41ad6348cc