Delete um_node import
Delete suffix .py
Use argpárse instead of optparse now
Delete suffix .py
Use agrparse instead of optparse now
Remove .py suffix
Change default for output directory
Fix bug introduced with 1b948aaba5d52c19cca757cb4ae7627d85278a42
Name of output file must have include 'begin' and 'end' timestamps.
Otherwise we will overwrite our files
Use argparse instead of optparse now
Use arparse instead of optparse now. This results in a complete
rewriting of the script. The script is in a beta state now. There will
be bugs...
Delete .py suffix