This patch makes the python tests source-compatible with python 3, while
leaving the interpreter at python 2 for now.
The tradeoff is that this source is no longer compatible with python
versions < 2.6, and requires gobject-introspection for the glib-based
tests.
Change required to test the scenario when the sender of a CreateDevice
request disconnects from the system bus. Current implementation is
blocking and it doesn't allow the user to cancel a request.
This patch adds a new "Blocked" property to device objects. It maps
directly to the HCIBLOCKDEV and HCIUNBLOCKDEV ioctl's which enable
control of incoming connection acceptance on the kernel side.