P4a beta test - #4

This handles the case where an InterfacesRemoved signal is received
but the device hasn't been "seen" yet.

Fixes: hbldh#407

This add a new BleakDBusError type for wrapping D-Bus errors. It also
adds a utility function to check replies for errors. This will give
better information when we encounter an error.

Issue: hbldh#406

This fixes failed characteristic and descriptor writes when the data
argument is not already a bytes object. The low-level D-Bus API
requires strict typing.

Fixes: hbldh#408

* document exceptions raised for connect and disconnect methods
* include D-Bus object path in debug log messages
* protect against reentrancy in _cleanup_all() method
* rework disconnect method synchronization for ensuring everything was
  cleaned up properly

When GetManagedObjects returns without a org.bluez.Device1 interface at
the requested object path, then the connect method would already fail
before trying the org.bluez.Adapter1.ConnectDevice method. This moves
the fallback code so that we handle this case.

Also added interfaces_and_props local variable for improved type hints
while touching this code.

* adv_service_data

Co-authored-by: Jonathan <jonathan.Soto@polestar.eu>

and an example for kivy buildozer on android

Fix for pairing in .NET backend.
Protection levels added to Windows backend.
Added example with Philips Hue lamp.
Updated version and changelog.

)

Adding option to avoid using cached services in .NET backend.
Updated troubleshooting guide with some details about cached devices.

…' if not name. Updated BLEDevice.__str__ conditional to check not self.name instead of equality to 'Unknown'. Updated second return statement in BLEDevice.__str__ to use self.name or 'Unknown'.

Updated changelog

Obviously misplaced code

Changed Service identification to handles for Windows pythonnet backend.
Changed Service identification to handles for BlueZ txdbus backend
Implement service handle for Core Bluetooth
Updated CHANGELOG.rst

Fixes hbldh#445
Fixes hbldh#362

Fix for the 'Unknown' name in scan results on Windows 10. 

Fixes hbldh#371

Implemented async callbacks for pythonnet, BlueZ txdbus and Core Bluetooth backends.
New example: Async callbacks with a queue and external consumer

0f56dab made a breaking change by changing is_connected from an async
method to a property. This wraps the return value of the property so
that it won't break existing code, but will instead print a warning
explaining the change.

Fixes hbldh#426

Fixes hbldh#424

use proper args and add stack trace level

Needed for Python 3.6. create_task() was introduced in Python 3.7

WIP: dbus-next

Fixes hbldh#471

several classes were missing overrides for abstract properties which causes a crash

These are things I had to do to get it to build and run

…form

per dlech suggestion

Co-authored-by: David Lechner <david@lechnology.com>

… PR recommendation

Co-authored-by: David Lechner <david@lechnology.com>

This reverts commit 6c1e5e9.