News: Debian-9; CAENelsH501D; pyspectra, hasyutils update; change_config

• Debian-9: this os is out of maintenance, no security updates, Debian-11 is started to be rolled-out. Please agree when contacted for an upgrade.

• CAENelsAH501D server: available (CAENAH501D)

• pyspectra update: prepare to handle TDC spectra for P04 (2D to 1D). Required an extension of the image attributes widget, see here

  hasyutils upgrade was necessary because of nxsReader changes to cope with TDC data.

• change_config (P01): to switch between different sets of environment variables, status: to be tested.