Merging for 9.1 release.

New Features:

Re-enabled multicast and made it work reliably.
Fixed the "enable/disable" logic. Makes the driver more robust.
Re-added support for Beagle Board and some other embedded Linux devices.
Fixed issue #85: re-added support for some Samsung phones that present themselves as Wireless device (224/0/0), instead of USB Composite device (0/0/0).

jwise / HoRNDIS