Bug 11415: Add syspref to toggle SCO receipt printing

Bug 11415: Add syspref to toggle SCO receipt printing

This patch adds the SelfCheckReceiptPrompt to control
whether receipts are automatically printed when a patron
finishes a SCO session.  This is on by default during
new installations and upgrades.

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>
(cherry picked from commit 9cc3b69a0cf1adfc7c50c25ef6d57c2e027e8950)

Conflicts:
	installer/data/mysql/updatedatabase.pl