p:pipeline should make a closure over in-scope variables

For the enhancement request pile:

  <p:pipeline ...>
    <p:option name="base.dir" required="true"/>

    <p:pipeline>
      <!-- $base.dir should be available here -->

                                        Be seeing you,
                                          norm

-- 
Norman Walsh
Lead Engineer
MarkLogic Corporation
Phone: +1 413 624 6676
www.marklogic.com