added httphandler to route between uihandler and vhosthandler
update /servicevhosts in zookeeper
watch zookeeper /servicevhosts to sync allvhosts
fixed SERVICED_VHOST_ALIASES use for daemon startup
for vhosts, postpend dot hostname only if vhost does not have dot
Merge pull request #1381 from control-center/feature/CC-574

fixes CC-574: make vhost configuration less onerous