Added support for parametrized help_url path.

This should close: bz#1030398

Change-Id: I3522c446f9a3c2981db0f03b8080fdfa68ea958b
(cherry picked from commit 17ba6a73cec7f386922e6a914a120a829e225efc)
Merge "Added support for parametrized help_url path." into stable/havana