Update to version 120
    
     * New containers page layout
     * Quick filtering of containers and images on the container page
     * Added sidebar for phisical volumes in a volume group
     * Run a separate cockpit-ssh process when making SSH connections
     * Allow connecting to remote machines from the login page
     * Only connect to remote machines already known to Cockpit
     * Fix bugs preventing journal page from working on Firefox 49
     * Add tooltip describing group name in Roles list