Broke the original multi-page halcmd help screen up into multiple sections, each less than one screen long.  Added a help command to call up individual help screens.
Broke the original multi-page halcmd help screen up into multiple sections, each less than one screen long.  Added a help command to call up individual help screens.

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