Bug#920305: ITP: popper.js -- Javascript library to position poppers in web applications

[Xavier Guimard <yadd@debian.org>]

Package: wnpp
Severity: wishlist
Owner: Xavier Guimard <yadd@debian.org>

* Package name    : popper.js
  Version         : 1.14.6
  Upstream Author : Federico Zivolo <federico.zivolo@gmail.com>
* URL             : https://popper.js.org/
* License         : Expat
  Programming Lang: Javascript
  Description     : Javascript library to position poppers in web applications

A popper is an element on the screen which "pops out" from the natural flow
of your application.
Common examples of poppers are tooltips, popovers and drop-downs.

This library is a dependency of twitter-bootstrap4 (RC bug #920188)