updatet requirements
formatts the result now correctly
added better logging, which is done in a separate thread now
changed to python based configuration file, and moved the killing event so also the sequential worker can use it, but now the parallel version isn't wroking anymore because something isn't pickleable
the configuration with natural python files works nice, increased parallel execution speed by only firing up as many workers as executions as maximum
the configuration file was still hardcoded, added a commandline option as well