update contributors [ci skip]
update contributors [ci skip]

- used [update-contributors](https://www.npmjs.com/package/update-contributors), sorted ascending case-insensitive; removed dupes

hoverduck/mocha,apkiernan/mocha,adamgruber/mocha,Hacker0x01/mocha,nightwatchjs/mocha-nightwatch,santiagoaguiar/mocha,adamgruber/mocha,mochajs/mocha,villesau/mocha,Hacker0x01/mocha,santiagoaguiar/mocha,santiagoaguiar/mocha,boneskull/mocha,mochajs/mocha,beatfactor/mocha,adamgruber/mocha,Khan/mocha,beatfactor/mocha,boneskull/mocha,outsideris/mocha,hoverduck/mocha,Khan/mocha,Khan/mocha,menelaos/mocha-solarized,sul4bh/mocha,nightwatchjs/mocha-nightwatch,villesau/mocha,sul4bh/mocha,rlugojr/mocha,nightwatchjs/mocha-nightwatch,igwejk/mocha,igwejk/mocha,Hacker0x01/mocha,hoverduck/mocha,JohnnyEstilles/mocha,menelaos/mocha-solarized,sul4bh/mocha,hoverduck/mocha,rlugojr/mocha,apkiernan/mocha,menelaos/mocha-solarized,JohnnyEstilles/mocha,boneskull/mocha,JohnnyEstilles/mocha,apkiernan/mocha,beatfactor/mocha,mochajs/mocha,outsideris/mocha,villesau/mocha,rlugojr/mocha