Changes to NATS

[ipatix]

Properly change over to request/reply where necessary.

Instead of "InputSubject" and "OutputSubject" use "RequestSubject" and "ReplySubject". For the CCControlClient the InputSubject is currently ignored and will be delivered to a unique "_INBOX.XXXXXXXXXXXXX" subject. This does work, but it makes managing permissions impossible because everybody on the NATS cluster shares the single "_INBOX." subject prefix.