* specgen: emit correct non-root return types (Dan Jarvis)
 * Update mocha & chai to latest (Miroslav Bajtoš)
 * Disable package-lock feature of npm (Miroslav Bajtoš)
 * Update eslint + config to latest (Miroslav Bajtoš)
 * Update strong-globalize and debug to latest (Miroslav Bajtoš)
 * Travis: add Node.js 8.x and 10.x (Miroslav Bajtoš)
 * Drop support for Node.js 4.x (Miroslav Bajtoš)
 * [WebFM] cs/pl/ru translation (candytangnb)