- bugfix: TCP input modules did incorrectly set fromhost property
  (always blank)
- bugfix: imklog did not set fromhost property
- added "fromhost-ip" property
- added "RSYSLOG_DebugFormat" canned template
- bugfix: hostname and fromhost were swapped when a persisted message
  (in queued mode) was read in

- added the ability to specify an error log function for the
  runtime
- removed dependency of core runtime on dirty.h

Note that it is "better" modularity, not perfect. There is still
work to do, but I think we can for the time being proceed with
other things.

reduced dependencies, moved non-runtime files to its own directory except
for some whom's status is unclear

    made this mode the default; this was needed, as some programs (e.g.
    sshd) log with inconsistent timezone information, what messes up the
    local logs (which by default don't even contain time zone information).
    This seems to be consistent with what sysklogd did for the past four
    years. Alternate behaviour may be desirable if gateway-like processes
    send messages via the local log slot - in this case, it can be enabled
    via the $InputUnixListenSocketIgnoreMsgTimestamp and
    $SystemLogSocketIgnoreMsgTimestamp config directives