Add lib_version to retrievable device properties.
Added option for forcing admin traffic to use the multicast bus for easier debugging.
Disable device link timeouts for now until session recovery daemon is ready.
Don't send subscribe message in response to hash-only /sync message.
Don't edit name string in logout handler before checking if routers/receivers match.
Fixed potential crash in several message handlers where mdev_name() was assumed to return valid value.
Monitor: Request devices to kick things off if autosubscribe is enabled.
Monitor: Ensure only one device callback is registered when changing autosubscription flags.