source code for nRF51822 beacon
Updated README.md to include pstoraege_platfrom.h

Need to copy pstoraege_platfrom.h from the sample ble_app_beacon_bcs
app.
Fixed typo (pstoraege -> pstorage)
Merge pull request #26 from robinkravets/nRF-source-code-2

Nrf source code 2