Eliminated php dependency with a private function for urlencode using sed. Php had failed on godaddy due to multiple php instances and naturally cron using the one without the necessary -r option. Compared to previous PR the sed code is now POSIX and should work on all environments.
Add functionality to add OCSP stapling info (.ocsp file), issuer (.issuer file) and multi-cert bundles (suffix on pem file based on key type).
This also corrects the order of key, certificate and intermediate in the PEM file, which although HAProxy does not seem to care, was incorrect in the prior version.