Fix for Bug 6980, Patron attributes are shown when ExtendedPatronAttributes is disabled

Fix for Bug 6980, Patron attributes are shown when ExtendedPatronAttributes is disabled

This patch adds a check for the value of the ExtendedPatronAttributes
preference to the scripts and corresponding logic to the templates
controlling the sidebar menu.

The patch also corrects a duplication of attributes code in moremember.pl

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
1) Added extended patron attributes in configuration, turned ExtendedPatronAttributes on
2) Altered patron details, added values for patron attributes
> Verified patron attributes show show correctly
3) Turned off ExtendedPatronAttributes
> Verified patron attributes were hidden everywhere

Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>