v1.1

• Add option to list the fields --list-fields
• Automatically check that all the fields exist in case there the
  search doesn't yield results, to warn the user.
• Use slightly different query to make the search case insensitive.
  Ideally it'd be case sensitive, but it's better than having to write
  everything lowercase.
• If a field is missing in the output, show it with a "empty" symbol
• Fix documentation about time format.