Syslog drain binder updates etcd with drain urls pulled from cloud controller.

[#81719084]

Signed-off-by: Georg Apitz <gapitz@pivotal.io>
Moves cloud_controller_poller upto main package.

[#81719084]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Make etcd TTL configurable

[#81719084]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Error if gosub not installed

Signed-off-by: John Tuley <jtuley@pivotal.io>
Bump storeadapter

[#81719084]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Finish syslog_drain_binder/main to wire everything together

[#81719084]

Signed-off-by: John Tuley <jtuley@pivotal.io>
Update URL-passing scheme and add logging

[#81719084]

Signed-off-by: John Tuley <jtuley@pivotal.io>