added a copy of the HAL document (.pdf format) to the EMC2 tree
added a copy of the HAL document (.pdf format) to the EMC2 tree

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