improve error handling.  introduce 'unsigned' and 'signed' as names for the HAL types, and deprecate 's32' and 'u32'.
improve error handling.  introduce 'unsigned' and 'signed' as names for the HAL types, and deprecate 's32' and 'u32'.

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