Raspisump

- Configuration file to store variables
- use cron to run the script at 1 minute intervals rather than in the script
- use raspisump_alternate.py if you want to run raspisump as a continuous
process without cron. Use only if you need to use intervals less than one minute.
- use checkpid.py if using as continuous process to monitor health of raspisump
process and restart it if stopped.
- PEP8 changes to code
- other code cleanup
- Added MIT License
- Added changelog

- Report water level in pit as opposed to distance of water from sensor
- todaychart.py to graph the water level
- add simulations for testing functionality without using RPi.GPIO
- Documentation for using raspisump
- added rudimentary cron examples

- 60 second interval monitoring of sump pit water level
- measures distance between sensor and water
- Error handling to compensate for fringe readings
- Readings logged to csv file.
- Automated SMS Email Alerts if water depth exceeds 35 cm in the sump pit.