model - added abortRequest function

There was already an abortQ request, but now an individual pipelined
request can be aborted.
model - more work on abort request

Now deletes the request and changes the status in the original q.
quickstart - bug fix in showProd

if showProd was run without a dispatch, the datapointer wasn't getting
set and so onCompletes that used it would break. Added datapointer.