2014-02-06
Added additional operators to the settings field, where we destermine if a user is
a student or a faculty member. Added "is numeric" and "is blank".

Added ability to hook in for the user type determination. See README.txt file for
more details on how the hook works.

Added extra documentation to the settings form, to make it obvious that users may need
to make all their fieldnames lowercase, regardless of how it appears in LDAP. This
is a limitation in PHP.