1.5:
	- fixed memory leak when sarlib_decode_aal5 returned NULL.
	 (reported by stephen.robinson@zen.co.uk)

1.4:
	- changed the spin_lock() under interrupt to spin_lock_irqsave()
	- unlink all active send urbs of a vcc that is being closed.

1.3.1:
	- added the version number

1.3:
	- Added multiple send urb support
	- fixed memory leak and vcc->tx_inuse starvation bug
	  when not enough memory left in vcc.

1.2:
	- Fixed race condition in udsl_usb_send_data()

1.1:
	- Turned off packet debugging
