rc.35 backward compatibility issues

[Philipp E. Letschert]

When reading 2.0.6 logfiles with ra 3.x I noticed two oddities:

- some of the 'man' records are not read at all, so the number of records is not
  in sync with the output of racount. It looks that the missed ones are the
  first entries, that are generated when argus starts and creates or appends to
  a logfile.
  Probably as a result of this, most of the 'srcid' entries are screwed up.
  There are addresses like 5.0.0.66, 5.112.0.66, 5.168.0.66 and so on.

- when reading 2.0.6 files with ra 3.x the entries for loss, sloss and dloss are
  always zero, even when loss was recorded

I can live with that - just to let you know...