Keep last known device status values for 15 minutes - #780

Keep last known device status values for 15 minutes#780

MtlPhil wants to merge 14 commits into

loopandlearn:devloopandlearn/LoopFollow:devfrom

achkars-org:fix/device-status-grace-period-15minachkars-org/LoopFollow:fix/device-status-grace-period-15minCopy head branch name to clipboard