BLE Application to open a Garage door

Dependencies:   BLE_API Crypto RNG mbed nRF51822

Fork of BLE_LED by Bluetooth Low Energy

This pull request has been accepted and merged in by Diogo Gomes

force BLE address to F2:9B:4B:03:02:01 to meet app expectations re prefix

App hardcodes expected BLE prefix as F2:9B:4B, but newer nanos don't necessarily have that prefix.

fork to force BLE id to have prefix that is assumed by the app