adding simple DSL for n1ql

Change-Id: I42b72d131d2d8224b088989ff6ab27ce6e505903
Reviewed-on: http://review.couchbase.org/37902
Reviewed-by: Michael Nitschinger <michael.nitschinger@couchbase.com>
Tested-by: Michael Nitschinger <michael.nitschinger@couchbase.com>