Bug#920871: RFP: node-xo -- JavaScript happiness style linter

[Jeff Cliff <jeffrey.cliff@gmail.com>]

Package: wnpp
Severity: wishlist

* Package name    : node-xo
  Version         : 0.21.1
  Upstream Author : Sindre Sorhus <sindresorhus@gmail.com> 
* URL             : https://notabug.org/makenotabuggreatagain/xo/
* License         : MIT
  Programming Lang: javascript
  Description     : JavaScript happiness style linter

>From the git repo:

"Opinionated but configurable ESLint wrapper with lots of goodies included. 
Enforces strict and readable code. Never discuss code style on a pull request again! 
No decision-making. No .eslintrc or .jshintrc to manage. It just works!"

Uses ESLint ( #743404 ) underneath.

node-xo is a dependency of node-gulp-watch ( #916664 ).