Bug 7280 - can't place hold without selecting on list

Bug 7280 - can't place hold without selecting on list

JavaScript was looking for clicks on links with class "hold,"
and incorrectly triggering the check for checked checkboxes.
Making the selection stricter lets the JS function as it should
while allowing people to place individual holds directly.

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
Signed-off-by: Paul Poulain <paul.poulain@biblibre.com>
(cherry picked from commit f9763a8ec925b8256ccc82c47ec33010601ae1a6)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>