By explicitly setting "cpu.percpu=True" as parameter, it is now possible
to get the CPU utilization on a per-cpu basis.
Future extension: One widget per CPU (add ID of CPU and add
warning/error state on a per CPU basis)
see #785
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...
