new version 0.2.2
    - enabled dhcpv6-client service for zones home and work
    - new dhcpv6-client service
    - firewall-cmd: query mode returns reversed values
    - new zone.changeZone(zone, interface)
    - moved zones, services and icmptypes to /usr/lib/firewalld, can be overloaded
      by files in /etc/firewalld (no overload of immutable zones block, drop,
      trusted)
    - reset MinimalMark in firewalld.cnf to default value
    - fixed service destination (addresses not used)
    - fix xmlplus to be compatible with the python xml sax parser and python 3
      by adding __contains__ to xml.sax.xmlreader.AttributesImpl
    - use icon and glib related post, postun and posttrans scriptes for firewall
    - firewall-cmd: fix typo in state
    - firewall-cmd: fix usage()
    - firewall-cmd: fix interface action description in usage()
    - client.py: fix definition of queryInterface()
    - client.py: fix typo in getInterfaces()
    - firewalld.service: do not fork
    - firewall-cmd: fix bug in --list=port and --port action help message
    - firewall-cmd: fix bug in --list=service