Since the group-show command doesn't return indirect members, the tabs
for group's indirect members have been reverted to call user-find with
the --in-groups parameter to get the entries.

However, this is only a temporary solution since the user-find command
returns both direct and indirect members (ticket #1273).

The Selenium test for groups has been modified to test nested groups
and verify indirect members. The verification currently will fail due
to the above issue.