Mock tooltipster plugin in explorer
Mock tooltipster plugin in explorer

Mock the jQuery tooltipster plugin if it's not installed so we
can remove it without breaking a bunch of other code.  We're using
this pattern in the builder as well, so it might be worth doing
this in a more global place.

denverfoundation/storybase,denverfoundation/storybase,denverfoundation/storybase,denverfoundation/storybase