add -f option to demag_gui.py, handle wildcards correctly when opening measurement files, default to data model 3 in some places, improve flow when trying to initially pick measurements file or directory, #550
add -f option to demag_gui.py, handle wildcards correctly when opening measurement files, default to data model 3 in some places, improve flow when trying to initially pick measurements file or directory, #550
lfairchild/PmagPy,lfairchild/PmagPy,lfairchild/PmagPy