Problem: Zyre would fail to start if the beacon cannot yet bind
Problem: Zyre would fail to start if the beacon cannot yet bind

Solution: Defer creation of beacon until the beacon is able to give us a valid hostname
zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre,zeromq/zyre