Release 1.0.109

Changes for caddy-frontend:

 * zero-SSL listening ports (Kedifa, Caucase) are monitored
 * Caddy is restarted for changes, which require it
 * ssl_proxy_ca_crt is protected against malformed content
 * validation promise is improved, so it does not timeout
 * ATS logs are rotated and removed after a year
 * kedifa-updater preparation does not require full configuration nor
   network, so it is possible to run it early
 * Caddy process which connects directly to the backend on cached slaves has
 * certificates for master and slave are put back to JSON schema
 * promise for error log check, which was not working and slowing down the
   cluster instantiation, has been removed
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