name the HELLO version the "link version"

         Addresses               [variable]

         others?

   Version should be 1. A Tor connection is considered to be using

   version 0 if the first cell we receive is not a HELLO cell.

   Version is the "link version", and dictates what types and formats

   of cells can be sent/received. It should be 1. A Tor connection is

   considered to be using version 0 if the first cell we receive is not

   a HELLO cell.

   Timestamp is the OR's current Unix time (GMT).