This is third beta release of 2.2.0 SDK. It includes more features
to support upcoming Couchbase Server release, stability fixes and
smaller improvements.
Changes:
* PCBC-379: Support for Subdocument API
* PCBC-385: Support for Index Management
* PCBC-394: Expose CAS as a bytestring
* PCBC-392: Client announce its version in the server logs
* PCBC-397: Additive connection string options are not clobbered anymore
* PCBC-395: Type checks properly enforced for booleans
* Various minor changes