How can I program RFduinos and how can I connect them with Bluetooth?
I am starting on a similar project (without the Dev Kit).  Hooking the Bluetooth module to the RFduino is pretty straight forward, PWR to PWR, GND to GND, remember to cross the transmission wires: TX to RX &amp; RX to TX.

In your void setup(), you need to start the connection:

Serial.begin(9600); // check your documentation to see the baud rate


In your void loop(), read or write to/from the bluetooth connection with serial write/read. Serial.read() or Serial.write()

Remember that Bluetooth is a communication protocol, not a controller.  You don't mention WHAT you are connecting your RFduinos to using Bluetooth. You still need a controller capable of sending a signal to light up the LEDs using Bluetooth.