Extend the basic example

Show in the example how to set, get and delete values

Change-Id: Id6e1245009c67e63d9073eccc8438f89fd560847
Reviewed-on: http://review.couchbase.org/25916
Reviewed-by: Matt Ingenthron <matt@couchbase.com>
Tested-by: Matt Ingenthron <matt@couchbase.com>