* Refactor LibreNMS service
add ping
* services ported
remote legacy stats collection
* alerting
* implement unique queues
* update discovery queue manager
* remove message
* more cleanup
* Don't shuffle queue
* clean up imports
* don't try to discover ping only devices
* Fix for discovery not running timer
* Update docs a bit and and add some additional config options.
Intentionally undocumented.
* Wait until the device is marked up by the poller before discovering
* Handle loosing connection to db gracefully
* Attempt to release master after 5 db failures
* Sleep to give other nodes a chance to acquire
* Update docs and rename the doc to Dispatcher Service to more accurately reflect its function.
* add local notification
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