ManageDocks: when there are struts on opposing edges, the right/bottom strut
ManageDocks: when there are struts on opposing edges, the right/bottom strut

was ignored.  TODO: quickchecks

0/xmonad-contrib,xmonad/xmonad-contrib,ohlus/xmonad-contrib,CaptainPatate/xmonad-contrib,ohlus/xmonad-contrib,0/xmonad-contrib,pjones/xmonad-test,CaptainPatate/xmonad-contrib,CaptainPatate/xmonad-contrib,0/xmonad-contrib,xmonad/xmonad-contrib,mathstuf/xmonad-contrib,ohlus/xmonad-contrib,f1u77y/xmonad-contrib,mathstuf/xmonad-contrib,mathstuf/xmonad-contrib,f1u77y/xmonad-contrib