aktuelle Version der Printing Driver #07 (%17.01.2018)
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V_01: initial printing driver version
V_02: network ppd driver
V_03: correct path for printer_driver_cache.txt
V_04: added HP Color Deskjet Pro MFP M177fw, deleted hpcups driver with failed result
V_05: remove old drivers before update
V_06: move drivers + version from appfs to rootfs
V_07: add system ppd files