Bump version 1.3.0

Change-Id: I976767d915c97af481823feee651de59a1e62163
Reviewed-on: http://review.couchbase.org/26102
Tested-by: Sergey Avseyev <sergey.avseyev@gmail.com>
Reviewed-by: Sergey Avseyev <sergey.avseyev@gmail.com>