Working Code with server and node

Changes:
Node: final_prototype_RF22:
1. Function to clear previous processing of received data
2. Handling for State = 0 with hack: attr_val is decremented by 1 for
all received attributes: ToDo: Fix it and remove hack
3. LIVE_STATE hard coding removed and updated with current status after
setting it. ToDo: Voltage sensor to be read to get live status
4. Folder for final_prototype_RF22.ino
5. Removed old node codes.
Server:
1. sendToRF.c - updated by Aravind
2. serverTx.ino - updated by Aravind
3. Separate folders for server pi code and server arduino code