Related-Bug: #1392852
Problem is that the menu doesn't expand on clicking top-level icon
(Configure,Monitor,..) in certain cases when the feature that is
currently active matches with the new feature that is going to be
displayed on clicking top-level icon.
As the same URL hash is updated in this case, window onhashchange
event is not triggered and it stops expanding the menu
Instead of setting the window.location, Use loadFeature function to load
the feature.

Change-Id: I64822facb89f3f84e5d9a818455876ba932daa91
Merge "Related-Bug: #1392852 Problem is that the menu doesn't expand on clicking top-level icon (Configure,Monitor,..) in certain cases when the feature that is currently active matches with the new feature that is going to be displayed on clicking top-level icon. As the same URL hash is updated in this case, window onhashchange event is not triggered and it stops expanding the menu Instead of setting the window.location, Use loadFeature function to load the feature."