Remove e.stopPropagation when clicking to show daterangerpicker

Fixes an annoying UI issue where if you have Bootstrap dropdowns on the page, clicking the
daterangepicker element when a Bootstrap dropdown was already clicked/is open wouldn't close
the Bootstrap dropdown (which is expected behavior).

There are other ways to fix this bug if the stopPropagation/preventDefault are needed, but I
didn't see a good reason for them to be there

Easiest way to test: add a Bootstrap dropdown on the examples page and click between them.