miq_ujs - preventDefault & stopPropagation for click events handled by miqJqueryRequest
miq_ujs - preventDefault & stopPropagation for click events handled by miqJqueryRequest

previously, code like

```haml
%a{ :href => "", :data-click_url => {:url => "whatever"}.to_json }
```

would still do the default browser behaviour (`a href=""` => trigger reload) and would usually not manage to perform the intended http request before that reload.

This stops the default handlers for any ujs `click` events that end up being
handled by miqJqueryRequest.
(transferred from ManageIQ/manageiq@dcb7633c9ad283937d6e885c1fe155c48f30ff60)

ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic,ManageIQ/manageiq-ui-classic