attempt on a non-recursive version

Merged Bernhard Landauer requested to merge oberon-manjaro:new_structure into master

I have the impression that it runs more responsive now. Also along the way I un-nested some remaining functions and added some little error catching. Have fun with it! ;) manjaro-architect-exp is in unstable now. Just updated once more. Latest version is now r224.g69231cac.

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