- 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

Conflicts:

	plugins/imklog/linux.c
	runtime/cfsysline.c
	runtime/ctok.c
	runtime/linkedlist.c
	runtime/sysvar.c

A symbol file was closed when it couldn't opened. That lead to a
NULL pointer being passed to fclose()

this callback is somewhat unportable in combination with dlopen()

... and some cleanup

including some cleanups

- 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.