Loadsa changes to make new cronscript way work

- Move functions so they are seen,
- Emit logs not only when called by dinstall
- Use correct variables (TMPFILES, not TEMPFILES)
- Define used variables
- create a scriptname link to the logfiles with datebased names
   - in the logdir, not in the configdir
- move linkmorgue from daily to weekly
- remove nonexistant tasks
- make purgeempty and fixsymlinks work on all archives, not just main
- all weekly tasks run in parallel