experimental commit of functions.pyversion history could not be re-created:
ms changed 1.2 version, gave to bb, who added things
then ms changed more to his version of the file
-> the last ms version was the one last commited;
now the changes (as verifiable) by bb are also in
modified something to avoid a syntax warning because of newer python version, and changed one line to avoid a error message if one start the T_parameter_display before the results of T-parameter calculation are already available.
modified something to use the wxPython version >=3.0.0 and to fix some that the mask image file only displayed here, but not subtracted as background.In order to use the mask image as mask, one should input in the image inategration the mask file as mask. This change tested already for image format gfrm, tiff, mccd and edf.