Release of bluez-4.24

This is the yearly X-mas release. So Merry Christmas to everyone.

bluez-4.24.tar.gz

It is nothing exciting compared to the previous release, but we fixed various adapter based signal emission and also made sure that on exit of the daemon all device are switched back off again.

And I spent quite some time to make sure we now compile nicely with -Wall and -Wextra to find common bugs quicker.