also str representation of unicode character is different.

See merge request nexedi/erp5!1796

See merge request nexedi/erp5!1810

- drop console logs
- update api doc
- refine init map coordinates
- crash drone if logic is empty
- jslint

sqlvar type="nb" was broken by sqlvar patch without being noticed,
thus test is required. See commit ebdc34d4.

See merge request nexedi/erp5!1811

See merge request nexedi/erp5!1812

   Redirect with error level, to display the notification properly displayed as error

  rather them use person directly to Manage it. It might allow an user
  use more them one certificate to authenticate.

  An Unique reference is set whenever issue a certificate, this prevents
  conflicts if the transaction is restarted/retry after getNewCertificate
  is already called, since we cannot rollback the call to openssl.

  Include and improve test coverage

   if a duplicated certificate (with same CN) is eventually generated by a
   bug or external tool (for whatever reason), revoke should revoke them all.

See merge request nexedi/erp5!1807

- drop map reduction
- fix random seed issue (drop relation with #drones)
- use min-max lat-lon map parameters for init

See merge request nexedi/erp5!1806

Fix position update regarding the drone speed