Bug 13139 - Move treeview jQuery plugin outside of language-specific directory

Bug 13139 - Move treeview jQuery plugin outside of language-specific directory

This patch moves the treeview plugin in the staff client from the
language-specific lib/jquery/plugins directory to the one outside the
theme directory.

To test, apply the patch and view the "Set permissions" page for a
patron. The list of permissions should display in an expandable list as
usual.

Signed-off-by: Frederic Demians <f.demians@tamil.fr>
It works, following the test plan. I can see the jQuery treeview plugin moved
from 'prog' language specific directory to the global lib/plugins directory.

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Works as described. Found no other places where we use this plugin.

Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>