Hi,

there is no library needed for a bluetooth modem on Asuro side. It is just a Bluetooth UART Transceiver. On PC side the SPP (Serial Port Protocol) will be used. This is also just another virtual COM Port on PC side.

Take a look at the datasheet.
http://www.sparkfun.com/datasheets/RF/BlueSMiRF_v1.pdf

Greets m.a.r.v.i.n