New integrated update script for everyone

Till now the update script:
sudo /home/pi/scripts/update.sh
would overwrite your rules and UI files with the default ones.

The new integrated update script (same location) asks you 2 questions:

Choose UI:
1) HVAC (US)
2) Standard (EU)

and

Choose temperature Unit:
1) Fahrenheit (F)
2) Celsius (C)

and updates all OpenHAB rules and UI files for Touch LCD, Smartphone and browser with the correct temperature unit.
For LCD changes to take effect a manual reboot is needed.
sudo reboot