add inline comment
allow "wizard query" to be passed as URL argument
Merge branch 'https' into wizard-templates
consolidate templates as special cases of the query wizard
work around some special case Overpass API glitches

* Overpass mistakes tabs, newlines, etc as spaces:
  https://github.com/drolbr/Overpass-API/issues/91
* Overpass interprets emtpy string as wildcard:
  https://github.com/drolbr/Overpass-API/issues/53