axis: fix the icon
axis: fix the icon

It turns out that the sting passed to XChangeProperty(CARDINAL, 32)
needs to be like an array of longs, but the hardcoded icon *string* was
set up for systems with 32-bit longs (not to mention an assumption of
endianness)

this has been broken forever on 64-bit systems, and in a way that was
overtly crashing for me today, so happily I could find it.

araisrobo/machinekit,strahlex/machinekit,kinsamanka/machinekit,RunningLight/machinekit,RunningLight/machinekit,ArcEye/MK-Qt5,bobvanderlinden/machinekit,unseenlaser/machinekit,bmwiedemann/linuxcnc-mirror,EqAfrica/machinekit,Cid427/machinekit,Cid427/machinekit,ArcEye/machinekit-testing,araisrobo/machinekit,ArcEye/machinekit-testing,cdsteinkuehler/MachineKit,bmwiedemann/linuxcnc-mirror,Cid427/machinekit,mhaberler/machinekit,bmwiedemann/linuxcnc-mirror,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing,araisrobo/machinekit,Cid427/machinekit,ikcalB/linuxcnc-mirror,bobvanderlinden/machinekit,cdsteinkuehler/linuxcnc,araisrobo/machinekit,EqAfrica/machinekit,EqAfrica/machinekit,ArcEye/MK-Qt5,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,RunningLight/machinekit,cdsteinkuehler/linuxcnc,cdsteinkuehler/MachineKit,unseenlaser/machinekit,Cid427/machinekit,RunningLight/machinekit,ArcEye/machinekit-testing,RunningLight/machinekit,unseenlaser/machinekit,EqAfrica/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,unseenlaser/machinekit,mhaberler/machinekit,unseenlaser/machinekit,strahlex/machinekit,araisrobo/machinekit,strahlex/machinekit,Cid427/machinekit,cdsteinkuehler/MachineKit,ikcalB/linuxcnc-mirror,ArcEye/machinekit-testing,bmwiedemann/linuxcnc-mirror,EqAfrica/machinekit,unseenlaser/machinekit,bobvanderlinden/machinekit,ikcalB/linuxcnc-mirror,ikcalB/linuxcnc-mirror,bmwiedemann/linuxcnc-mirror,bobvanderlinden/machinekit,strahlex/machinekit,kinsamanka/machinekit,kinsamanka/machinekit,kinsamanka/machinekit,cdsteinkuehler/MachineKit,mhaberler/machinekit,ArcEye/MK-Qt5,araisrobo/machinekit,bobvanderlinden/machinekit,ArcEye/MK-Qt5,cdsteinkuehler/MachineKit,ikcalB/linuxcnc-mirror,araisrobo/machinekit,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,araisrobo/machinekit,bobvanderlinden/machinekit,cdsteinkuehler/linuxcnc,EqAfrica/machinekit,cdsteinkuehler/linuxcnc,mhaberler/machinekit,mhaberler/machinekit,RunningLight/machinekit,kinsamanka/machinekit,kinsamanka/machinekit,kinsamanka/machinekit,EqAfrica/machinekit,RunningLight/machinekit,bmwiedemann/linuxcnc-mirror,ArcEye/machinekit-testing,strahlex/machinekit,ArcEye/machinekit-testing,unseenlaser/machinekit,ikcalB/linuxcnc-mirror,ArcEye/MK-Qt5,strahlex/machinekit,mhaberler/machinekit,unseenlaser/machinekit,EqAfrica/machinekit,Cid427/machinekit,bobvanderlinden/machinekit,bobvanderlinden/machinekit,kinsamanka/machinekit,strahlex/machinekit,Cid427/machinekit,ikcalB/linuxcnc-mirror,araisrobo/machinekit,ArcEye/MK-Qt5,mhaberler/machinekit,cdsteinkuehler/linuxcnc,ArcEye/machinekit-testing