LP 1548993: Restore Show More/Show Fewer Details button functionality.

LP 1548993: Restore Show More/Show Fewer Details button functionality.

When using a show_more_details.default setting of true in config.tt2,
the Show More/Show Fewer Details button functionality is broken.  The
detail record view is always shown, regardless of the button's state.
This patch attempts to repair the behavior so that the user can toggle
the detail record view even though the default is set to true.

Signed-off-by: Jason Stephenson <jstephenson@mvlcstaff.org>
Signed-off-by: Jeanette Lundgren <jlundgren@cwmars.org>
Signed-off-by: Kathy Lussier <klussier@masslnc.org>