Edit WebSubmit Function

Make a dummy MARC XML record and store it in a submission's working-
directory.
This dummy record is not intended to be inserted into the Invenio
repository. Rather, it is intended as a way for other submission-
related functionalities to have access to the data submitted without
necessarily having to know the names of the files in which the
values were stored.
An example could be the publiline service: by using a dummy record
in the submission's directory in would be able to access an item's
information (e.g. title, etc) without having to know the name of the
title file, etc.
Another use for the dummy record could be, for example, creating a
preview of the submitted record information with bibconvert.

@param parameters: (dictionary) - must contain:

      + dummyrec_source_tpl: (string) - the name of the bibconvert
        source template used for the creation of the dummy record.

      + dummyrec_create_tpl: (string) - the name of the bibconvert
        create template used for the creation of the dummy record.

@param curdir: (string) - the current submission's working
                          directory.

@param form: (dictionary) - form fields.

@param user_info: (dictionary) - various information about the
                                 submitting user (includes the
                                 apache req object).

@return: (string) - empty string.

@Exceptions raised: InvenioWebSubmitFunctionError when an
                    unexpected error is encountered.