add ability to reverse network graph direction (#715)
add ability to reverse network graph direction (#715)

* add ability to reverse network graph direction
enkore/i3pystatus,drwahl/i3pystatus,facetoe/i3pystatus,drwahl/i3pystatus,Arvedui/i3pystatus,Arvedui/i3pystatus,enkore/i3pystatus,facetoe/i3pystatus