Replace deprecated javascript escape() with encodeURIComponent()

Signed-off-by: Pasi Kallinen <pasi.kallinen@pttk.fi>
Signed-off-by: Dan Scott <dscott@laurentian.ca>

Conflicts:
	Open-ILS/xul/staff_client/chrome/content/auth/controller.js
	Open-ILS/xul/staff_client/chrome/content/util/error.js
	Open-ILS/xul/staff_client/chrome/content/util/print.js
	Open-ILS/xul/staff_client/server/admin/offline_manage_xacts.js
	Open-ILS/xul/staff_client/server/circ/print_list_template_editor.js

Signed-off-by: Dan Scott <dscott@laurentian.ca>