* The events are suppressed on click of ULS trigger, it is an anti
pattern. It can cause other overlay dialogs, if any, to stay with
ULS and causes UI glitch. This patch just propagates the events and not
eats up.
* The show method was hiding all other ULS dialoges open using a
global $('.uls-menu').hide(). This is again not a good pattern.
A plugin instance should not interfere with other instance's state.
More over, calling jQuery hide() method on menu instead of plugin's
hide method leaves the other plugin instance in a corrupted state.
The plugin hide method does more things than just hiding the menu.
It has a 'shown' book keeping property to update. This kind of
corrupted state was causing bugs like https://phabricator.wikimedia.org/T114123
* While avoiding the above two antipatterns, the way ULS was hidden when
clicked on any 'other' part of body was improved. It now uses event.target
to correctly handle the 'click-outside-hide' logic
All these above changes does not change any existing UX.
Change-Id: I40b355115cbda54a68e8d58d3750fb9f1c3b6920
d4de09ffb9