[PATCH][BUGFIX] 1.7.2

This is a bugfix for 1.7.x versions. New features will only be added to 2.0.x

To support the diversities picker long-click functionality, I used onMouseDown, and remove the click handler, meaning nothing prevents its default.

Clicking emojis added a shebang(#!) to the url, and in react router apps triggered a re-render.

Here I add a preventDefault handler for the picker that stops this from happening.

Related to:
#50