update CHANGELOG for v4.1.0
update CHANGELOG for v4.1.0

Signed-off-by: Christopher Hiller <cba4593484830aa757cb097d8d9f0ea9b692b304@boneskull.com>

boneskull/mocha,hoverduck/mocha,adamgruber/mocha,hoverduck/mocha,boneskull/mocha,igwejk/mocha,mochajs/mocha,hoverduck/mocha,mochajs/mocha,adamgruber/mocha,boneskull/mocha,igwejk/mocha,outsideris/mocha,outsideris/mocha,mochajs/mocha,hoverduck/mocha,adamgruber/mocha