Bump to version 0.7.0:

 * Use foris-js 3.4.0.
 * Improve plugins integration into menu.
 * Improve backend mock in tests.
 * Extract Wi-Fi form to ForisJS.
 * Support calling of specific controller.
 * Expose react-router.
 * Get rid of flask-sessions dependencies.
 * Improve validaion of DHCP settings.
 * Display branch of TurisOS in About page.
 * Fix:
   * Fix bug with repeated connection test.
   * Fix "Importance" value in email notificaions settings.
   * Alert placement.
   * Dropdown menu on small devices.
   * Network restart handling.
   * Setup MOX with one port.