Toshaan Bharvani 89c6368538 add a cancelled membership field
- allow membership to be cancelled and retain historical membership
- do not display any cancelled members in the listing and single pages

Signed-off-by: Toshaan Bharvani <toshaan@vantosh.com>
..
list.html add a cancelled membership field
list.json change to relative links
list.ldif add ldif file output to import into ldap server
list.xml change to relative links
single.html add a cancelled membership field
single.json add a cancelled membership field
single.ldif add ldif file output to import into ldap server