WillItRebin, NEW: support of selecting multiple files; run it without GUI, i.e. for scripting
python WillItRebinMultiShell.py -h
python WillItRebinMultiShell.py
python WillItRebinMultiShell.py -nox -f testdata/[5-8]_NTJ_phyx.dat -n 0 -q ang -r log 1.04 -s 1.5
python WillItRebinMultiShell.py -nox -f testdata/[5-8]_NTJ_phyx.dat -n 5 -r lin 8 -s 1.5
python WillItRebinMultiShell.py -nox -f testdata/[5-8]_NTJ_phyx.dat -r log 1.06