event stream monitoring and recovery
event stream monitoring and recovery

This creates two more channels that are used to monitor
the event stream.  In the event of a failure, Docker host
connectivity is retried until success at which time the event
handler is re-configured and event handling is recovered.

Signed-off-by: Evan Hazlett <7e61ed261aef9abaa71fd4c2127eb6cb9f01ce10@gmail.com>

vixns/interlock,everett-toews/interlock,krishamoud/interlock,vixns/interlock,ehazlett/interlock,everett-toews/interlock,krishamoud/interlock,mbentley/interlock,mbentley/interlock