Comment 2 for bug 919009

Reviewed: https://reviews.mahara.org/1000
Committed: http://gitorious.org/mahara/mahara/commit/2f43bf9467f5b10792a7c32a8a7e42114c8b7fc6
Submitter: Francois Marier (<email address hidden>)
Branch: master

commit 2f43bf9467f5b10792a7c32a8a7e42114c8b7fc6
Author: Richard Mansfield <email address hidden>
Date: Tue Jan 17 16:29:58 2012 +1300

    Allow staff to access the admin user search page (bug #919009)

    Staff members will be able to search through all users in their
    institutions, but they cannot edit a user unless they are also an
    administrator for them (institution or site administrator).

    Links from the usernames to the account settings page are only
    displayed when the logged-in user is an administrator for the listed
    user.

    The "edit selected users" button is only displayed to site and
    institutional admins, and the bulk actions page it links to now
    explicitly states which users have been filtered out due to lack of
    institutional admin privileges.

    Email addresses are removed from the list for staff users.

    If the logged-in user is an admin in one institution, and staff in
    another, email is displayed and usernames linked only for the
    'adminned' users. The bulk actions page is still reachable, but any
    selected users who are not adminned by the logged-in user will be
    removed.

    Change-Id: Ia65a960df9af7c5794002007e7580ba5f9a4c9d7
    Signed-off-by: Richard Mansfield <email address hidden>