Bug#846205: ITP: node-invariant -- invariant

[Paolo Greppi <paolo.greppi@libpf.com>]

Package: wnpp
Severity: wishlist
Owner: Paolo Greppi <paolo.greppi@libpf.com>
X-Debbugs-CC: debian-devel@lists.debian.org

* Package name    : node-invariant
  Version         : 2.2.2
  Upstream Author : Andres Suarez <zertosh@gmail.com>
* URL             : https://github.com/zertosh/invariant#readme
* License         : BSD-3-Clause
  Programming Lang: JavaScript
  Description     : invariant

 Node.js module to provide descriptive errors in development but
 generic errors in production.
 .
 Node.js is an event-based server-side JavaScript engine.

This is required for node-yarnpkg (https://bugs.debian.org/843021).