[ACS44] Cherry pick for CLOUDSTACK-6601

[Alena Prokharchyk]

Daan, can you please cherry-pick the request below:

commit cadefb1aeb2e1d973c9dcf38e7f793adc50599d6
Author: Alena Prokharchyk <alena.prokharc...@citrix.com>
Date:   Wed May 7 16:57:10 2014 -0700

    CLOUDSTACK-6601: added "forDisplay" parameter to listLoadBalancerRules API

Thank you!
-Alena.