* data update (minor)
* BBBikeUtil: new function german_locale_xfrm

  So the sorting transformation in sort_german() may be used
  elsewhere.
* cgi: fixed and unified sorting in choose_ch_form and choose_all_form

  choose_ch_form was broken on debian systems (but worked fine on
  FreeBSD systems), while choose_all_form was everywhere OK, but used
  some setlocale() magic. Now the dependence on system locales is
  gone.

  This is still hardcoded for German sorting; for osm based data which
  may have non-German street names another solution needs to be found.
* fragezeichen2org and DistDB: handle zero distances
* data update