CCCP: Clarify that CCCP requires an updated client library, and the old port 8091 mechanism is still available.
Merge pull request #105 from couchbaselabs/cccp-clarify-updated-client-requirement

CCCP: Clarify that CCCP requires an updated client library, and the old port 8091 mechanism is still available.
Server 2.5: fix typo in release notes