We can't yet upgrade to fonttools 4.27.* because afdko doesn't support it yet. * Refactor to use pytestCheckHook * No longer necessary to set locale prior to running the tests * Python 3.6 support will be dropped soon Change Log entrys: * https://github.com/fonttools/fonttools/releases/tag/4.22.0 * https://github.com/fonttools/fonttools/releases/tag/4.22.1 * https://github.com/fonttools/fonttools/releases/tag/4.23.0 * https://github.com/fonttools/fonttools/releases/tag/4.23.1 * https://github.com/fonttools/fonttools/releases/tag/4.24.0 * https://github.com/fonttools/fonttools/releases/tag/4.24.1 * https://github.com/fonttools/fonttools/releases/tag/4.24.2 * https://github.com/fonttools/fonttools/releases/tag/4.24.3 * https://github.com/fonttools/fonttools/releases/tag/4.24.4 * https://github.com/fonttools/fonttools/releases/tag/4.25.0 * https://github.com/fonttools/fonttools/releases/tag/4.25.1 * https://github.com/fonttools/fonttools/releases/tag/4.25.2 * https://github.com/fonttools/fonttools/releases/tag/4.26.0 * https://github.com/fonttools/fonttools/releases/tag/4.26.1 * https://github.com/fonttools/fonttools/releases/tag/4.26.2