adding db backup scripts, and an overview README of how to use them

git-svn-id: svn://svn.open-ils.org/ILS-Contrib@835 6d9bc8c9-1ec2-4278-b937-99fde70a366f

fix bib query so that each bib is extracted only once

Signed-off-by: Galen Charlton <gmc@esilibrary.com>

make sure deleted bibs are excluded

Belt-and-suspenders

Signed-off-by: Galen Charlton <gmc@esilibrary.com>

Scope collectionHQ extract to org unit + children

Enable collectionHQ extract functions to scope to a specified org
unit ID and that org unit's children. Specify a default org unit of
1 to closely reproduce previous behavior.

NOTE: Even with an org unit of 1, this work-in-progress changes
previous behavior due to requiring an asset.call_number with
owning_lib in scope. Previously ALL bibs were included.

Signed-off-by: Jeff Godin <jgodin@tadl.org>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>

collectionHQ data extraction report

Scripts to produce a report of bibs and items from
an Evergreen database for submission to collectionHQ.

These scripts were sponsored by the King County Library System.

Signed-off-by: Galen Charlton <gmc@esilibrary.com>

initial README and license info for ESI's Evergreen contribs

Signed-off-by: Galen Charlton <gmc@esilibrary.com>