- New WIP for Clean shutdown.
- Changed graceful to clean.  Added also some docs.
- Fixed test_scripts_stop.py.  Changed short option from g to c. Fixed subfunction s/sighup/sigusr1
- Fixed stop_clean.
s/Shutdowns/Shuts down/
- Changed SIGHUP to SIGUSR1.
- Fixed documentation to reflect the new --clean parameter for stop.
fix pyflake
Merge branch 'pull554'