def ldap_system_admin_groups
      @ldap_system_admin_groups ||=
          begin
            val = @options[:ldap_system_admin_groups]
            val.blank? ? [] : val.strip.gsub(',', ';').split(';').map{|v| v.strip.upcase}
          end
    end
def ldap_system_admin_groups
      @ldap_system_admin_groups ||=
          begin
            val = @options[:ldap_system_admin_groups]
            val.blank? ? [] : val.strip.gsub(',', ';').split(';').map{|v| v.strip.upcase}
          end
    end
Gets the list of ldap groups that map to system administrators.