mod_cloud_notify: added code to respond to the new event "smacks-ack-delayed" issued by mod_smacks when acks are delayed for a certain amount of time. This allows to send out notification requests before the read timeout or connection close event really happens, thus allowing conversations to be smoother.

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summary: Allow server administrators to probe any user
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This module lets server administrators send `<presence type="probe"/>`
to any local user and receive their presence in response, bypassing
roster checks.