Edited the install script

Removed git-core package, added pip install for adafruit libraries,
commented out the general part of rc.local (prevents overwriting an
existing start script), commented on the use of modprobe
Minor variable name and function call adjustments

On LCD initialization let Adafruit's code determine the RPi model,
changed reverse ssh host ip variable name from 'connectingClientIP' to
'ssh_reverseIP'
Changed structure of menu

Using tuples and ordered dict instead. Need to check line 289. Does that
globals() call work?
Fixed indentitaion errors. All the new code works - merging to master.
Resolved merge conflicts
More conflicts resolved