require node 8 tests to pass (#2017)
require node 8 tests to pass (#2017)

now that node 8.2+ is on Travis
haraka/Haraka,smfreegard/Haraka,haraka/Haraka,haraka/Haraka,haraka/Haraka,msimerson/Haraka,msimerson/Haraka,smfreegard/Haraka,msimerson/Haraka,smfreegard/Haraka,smfreegard/Haraka,msimerson/Haraka