Fix: replace spaces with underscore in custom signalnames
Fix: replace spaces with underscore in custom signalnames

Hal doesn't like spaces in signal names so we check for and
replace them with an underscore. mesa and parport pages.
probably some situations with gpio and parport still not
completely covered by this fix.

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