Release of BlueZ 5.11

This release contains numerous fixes in many places of the stack, including SDP, AVRCP and OBEX. The btmon HCI analyzer tool also received updates to fully encode a few missing HCI commands.

This is also the first release where have some basic parts of the Android Bluetooth HAL implemented. Things like GAP (device discovery, pairing, etc) should work as well as connecting and using HID devices. All of the Android code lives independently in the android subdirectory of the source tree, though it does share several parts of the “normal” BlueZ source code, such as the SDP handling and mgmt library.