Implement function to execution management requests. Using libcouchbase_make_management_request() function you can configure the cluster, add/remove buckets, rebalance etc. It behaves like libcouchbase_make_couch_request() but works with another endpoint.

Add support for notification callbacks for configuration changes. Now it is possible to install a hook using function libcouchbase_set_configuration_callback(), and be notified about all configuration changes.

Extract HTTP client. Backward incompatible change in Couchbase View subsystem