Release of BlueZ 5.32

This is mostly a bug fix release rather than including many new features. The fixes fall in several different areas, including OPP, ATT and advertising (instance number handling in particular). There’s also a fix for handling a sudden disconnect when a connection setup process hasn’t yet completed. The one notable feature this release has is the ability to select between letting the stack handle ATT security elevation or doing the respective error handling in higher layers.