Capture and log AuthProxy logins with no account

The current AuthProxy.pm code assumes that if the external auth
passes, the Evergreen account will be there.  This protects
against cases where a user is in the external auth system but
has no matching account in Evergreen.

Signed-off-by: Dan Wells <dbw2@calvin.edu>
Signed-off-by: Bill Erickson <berick@esilibrary.com>
Documentation for default values in Load Order Record form

Documentation for new default values and sticky fields in the acq Load
MARC Order Records form. I also moved up/modified 2.1 docs for this
interface and integrated them with the 2.2 acq/Vandelay integration docs.

Signed-off-by: Kathy Lussier <klussier@masslnc.org>
Merge branch 'master' of git://git.evergreen-ils.org/Evergreen into sticky-acq-fields-docs