[NTG-context] new upload

Hi, I uploaded a new version. This time some cleanup of the backend, so let's see where I messed up this time. The installer has been adapted so that an apple m1 machine is recognized. No native arm bins, that has to wait till we have some hardware available. Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------