LP#1117808: release notes for New Access points for MARC Overlay

LP#1117808: release notes for New Access points for MARC Overlay

Test plan for the feature:

[1] Define one or more merge profiles in the MARC import/export
    interface.
[2] Verify that the Default Merge Profile (Z39.50 and Record Buckets)
    library setting type exists, and that if you set it to a value
    for the workstation library, that it the merge profile selectors in the
    record bucket merge and Z39.50 overlay interfaces default to
    the specified value.
[3] In the web staff client, create a record bucket containing at least
    two or more similar bibliographic records.  From Bucket View,
    select at least two records and select Merge Selected
    Records from the actions menu.
[4] Verify that:
    * There is a widget for selecting a merge profile
    * That after choosing a lead record, that the lead record
      view reflects the results of the merge.
    * That the results of the merge are updated whenever you:
      * choose a different merge profile
      * choose a different lead record
      * remove a record from consideration
    * That the lead record's MARC is updated upon clicking the
      'Merge' button in the dialog.
[5] In the web staff client, mark a bib record for overlay, then
    go to the Z39.50 search interface and perform a search. Select
    a record and click the Overlay button, then verify that:
    * There is a widget for selecting a merge profile
    * That the results of the merge are updated whenever you:
      * choose a different merge profile
    * That after closing the dialog, that the overlaid record
      reflects the result of the merge profile.
[6] Verify that upon exiting and returning to the record bucket
    merge or Z39.50 overlay interfaces, that the last selected
    merge profile is pre-selected.

Development of this feature was performed by the Equinox Open
Library Initiative and sponsored by the BC Libraries Cooperative.

Signed-off-by: Galen Charlton <gmc@equinoxinitiative.org>
Signed-off-by: Kathy Lussier <klussier@masslnc.org>