OK - so I have to admit I *hate* the fact that PIP seems to require a
subdirectory named like the library.
But since the PIP package is something really nifty to have (thanks to
@tony again!!!), I updated the codebase to hopefully conform with what
PIP expects. Testruns so far look promising...
Re-enable the -f | --logfile parameter, but still default to logging to
stderr.
Also, add a "debug" module that is automatically displayed if a bar is
run in debug mode (thanks to @bbernhard for the excellent suggestion)
fixes#614