Make program compatable with OSB0.

Add code to allow the program to run on either OSPi or OSBo.
Update Rev info.
Add ospi.service to distro.
Edit home.js to not show CPU temp field on OSBo's home page
Add error checking for rain sensor code on OSPi.

The code added to allow the rain sensor to work on the OSBo caused an
error when 'use rain sensor' was enabled on the Pi.
Update rev data.
Added support for Rain Sensor and Relay for OSPi rev. 1.3
Update to reflect Rain sensor support on OSPi 1.3.
Add plugins folder as module.
add test plugin (relay).
Edit to work with python 2.7
Small tweaks.
Clean up plugin test changes
Update rev. data.
Merge branch 'master' of https://github.com/jonathan-marsh/OSPi into
JM_UI

Conflicts:
	README.md
	ospi.py
	static/scripts/java/svc1.8.3/home.js
Remove unnecessary file and folders
re-added "pwd" to sd.json
Made Web.config.debug False to improve response time.
Add plugin support from newer branch into 1.9.0 branch
Bump version number in mobile app plugin to match