Delete swap file committed by accident
Add watchdog monitoring scripts for PhidgetSBC

Watchdog is a linux daemon that can check the status of a system and
repair or reboot it if necessary. I use it on the PhidgetSBC to monitor
the controller_pws_main.py daemon. If that daemon crashes, it is
restarted. If that doesn’t work, the system is rebooted.
Improved watchdog scripts

Check/repair watchdog scripts are now long running by default. A .pid
file check prevents parallel execution. This reduces CPU usage because
the watchdog check interval can be extended and the check scripts are
idle most of the time. Added crondog.sh so you can use cron for
monitoring instead of watchdog.
Quoted variables and removed sleep in get_lock()
Added path some debugging (commented out)
Add check for empty samples in TextLCD writer

If TextLCD controller is run before the log has any data then there is
nothing to display (samples is empty) so just return.
chmod all controllers to be executable
Comment out closing of log handler stream

I can’t figure out why, but after some time a closed log file is not
opened properly on next write and file is truncated. The log file will
be closed on next rotation (within 24 hours).
Added TODO