merge rev 1.6.2.4: improve discussion of parport x-mode.  explicitly mention 'lspci -v' for finding port addresses
merge rev 1.6.2.4: improve discussion of parport x-mode.  explicitly mention 'lspci -v' for finding port addresses

mhaberler/machinekit,ikcalB/linuxcnc-mirror,bobvanderlinden/machinekit,aschiffler/linuxcnc,mhaberler/machinekit,yishinli/emc2,jaguarcat79/ILC-with-LinuxCNC,araisrobo/machinekit,mhaberler/machinekit,strahlex/machinekit,ArcEye/machinekit-testing,araisrobo/machinekit,kinsamanka/machinekit,cdsteinkuehler/MachineKit,cdsteinkuehler/linuxcnc,unseenlaser/machinekit,bmwiedemann/linuxcnc-mirror,RunningLight/machinekit,cdsteinkuehler/linuxcnc,ianmcmahon/linuxcnc-mirror,cnc-club/linuxcnc,ArcEye/MK-Qt5,araisrobo/machinekit,unseenlaser/machinekit,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,strahlex/machinekit,unseenlaser/linuxcnc,ArcEye/machinekit-testing,cnc-club/linuxcnc,Cid427/machinekit,unseenlaser/machinekit,cnc-club/linuxcnc,cnc-club/linuxcnc,ikcalB/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,ianmcmahon/linuxcnc-mirror,ArcEye/machinekit-testing,aschiffler/linuxcnc,narogon/linuxcnc,cdsteinkuehler/linuxcnc,ArcEye/MK-Qt5,bobvanderlinden/machinekit,araisrobo/machinekit,ianmcmahon/linuxcnc-mirror,araisrobo/linuxcnc,strahlex/machinekit,Cid427/machinekit,araisrobo/machinekit,cdsteinkuehler/MachineKit,RunningLight/machinekit,mhaberler/machinekit,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,EqAfrica/machinekit,araisrobo/linuxcnc,mhaberler/machinekit,araisrobo/linuxcnc,unseenlaser/linuxcnc,RunningLight/machinekit,cdsteinkuehler/MachineKit,kinsamanka/machinekit,aschiffler/linuxcnc,cdsteinkuehler/MachineKit,narogon/linuxcnc,EqAfrica/machinekit,kinsamanka/machinekit,cnc-club/linuxcnc,araisrobo/machinekit,RunningLight/machinekit,strahlex/machinekit,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,EqAfrica/machinekit,cdsteinkuehler/MachineKit,bobvanderlinden/machinekit,araisrobo/machinekit,EqAfrica/machinekit,araisrobo/linuxcnc,aschiffler/linuxcnc,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/linuxcnc,mhaberler/machinekit,Cid427/machinekit,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,kinsamanka/machinekit,jaguarcat79/ILC-with-LinuxCNC,EqAfrica/machinekit,ArcEye/machinekit-testing,unseenlaser/machinekit,Cid427/machinekit,narogon/linuxcnc,kinsamanka/machinekit,ianmcmahon/linuxcnc-mirror,ArcEye/machinekit-testing,yishinli/emc2,ianmcmahon/linuxcnc-mirror,ikcalB/linuxcnc-mirror,bobvanderlinden/machinekit,ArcEye/MK-Qt5,cnc-club/linuxcnc,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,narogon/linuxcnc,strahlex/machinekit,ikcalB/linuxcnc-mirror,yishinli/emc2,araisrobo/linuxcnc,Cid427/machinekit,unseenlaser/linuxcnc,bobvanderlinden/machinekit,unseenlaser/machinekit,EqAfrica/machinekit,EqAfrica/machinekit,ikcalB/linuxcnc-mirror,kinsamanka/machinekit,RunningLight/machinekit,bobvanderlinden/machinekit,Cid427/machinekit,yishinli/emc2,ikcalB/linuxcnc-mirror,cnc-club/linuxcnc,kinsamanka/machinekit,jaguarcat79/ILC-with-LinuxCNC,Cid427/machinekit,bobvanderlinden/machinekit,araisrobo/machinekit,ianmcmahon/linuxcnc-mirror,ArcEye/MK-Qt5,unseenlaser/machinekit,bobvanderlinden/machinekit,ArcEye/MK-Qt5,EqAfrica/machinekit,strahlex/machinekit,bmwiedemann/linuxcnc-mirror,jaguarcat79/ILC-with-LinuxCNC,mhaberler/machinekit,unseenlaser/machinekit,unseenlaser/linuxcnc,strahlex/machinekit,jaguarcat79/ILC-with-LinuxCNC,ArcEye/machinekit-testing,araisrobo/machinekit,cdsteinkuehler/linuxcnc,ArcEye/MK-Qt5,ikcalB/linuxcnc-mirror,ArcEye/machinekit-testing,bmwiedemann/linuxcnc-mirror,unseenlaser/linuxcnc,narogon/linuxcnc,kinsamanka/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,aschiffler/linuxcnc,Cid427/machinekit,unseenlaser/machinekit