mod_cloud_notify: Rename field in event for clarity ('node' is ambiguous here)
...because the push protocol is based on XEP-0060, and the 'node' can mean the
identifier communicated to the push service.
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summary: Log a message once per minute
...
This module sends `-- MARK --` to the log once per minute. This may be
useful to give a sense of how busy the server is or see that logging and
timers are still working.