LP1287967 - drop reporter.classic_current_circ view as part of 0864 upgrade

As noted in the bug description, attempts to run 0864.MVF_CRA-upgrade.sql will
fail on a database where the reporter.classic_current_circ view is present.

Add a DROP VIEW IF EXISTS and then include a note that administrators will need
to recreate the VIEW afterwards if desired.

Signed-off-by: Ben Shum <bshum@biblio.org>
Signed-off-by: Bill Erickson <berick@esilibrary.com>
LP#1287967 upgrade notes re: removing reporter view

...and it's reinstallation requirements.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Ben Shum <bshum@biblio.org>
LP#1294156 TPAC activate hold Submit on load w/ barcode

Repairs an error introduced by b055fe4, where the Submit button was left
inactive on initial page load, even when a valid barcode was already
set.

Overall, this change paritally rolls back b055fe4 to simplify the
implementation.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Ben Shum <bshum@biblio.org>