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I need some feasable reporting data, to create reports on. I figured it
to be easyer to make this import halfway, instead of mangling a seed for this

This reverts commit fe51476e.

I need some feasable reporting data, to create reports on. I figured it
to be easyer to make this import halfway, instead of mangling a seed for this

- this speeds up the thing, especially if accessors are loaded
  that aren't used yet

- until now, that first_language column in the volunteers view wasn't
  fullfilling the specs. It was simply the first language_skill the volunteer
  had added. That could have been any language. First language would have
  been a matter of luck.
- if there is more than one native_spoken language, german is taken as first
  language, if it is in the list, or otherwise it will just be the first pick
  of native spoken languages
- other languages exclude the one that is considered first language