JVMCBC-37: Rename Binary services/endpoints and associated to KeyValue.

This changeset renames the binary* parts to key value in order to better
reflect what they are doing. Binary is too ambigous.

Change-Id: Icd3687aa5bd4ad5e7d3aef381e7488e67fe2682e
Reviewed-on: http://review.couchbase.org/41437
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>