2.0.0:
- Initial version

2.0.1:
- Put all packages into Tinkerforge namespace
- Fix signature of get/set_response_expected(_all) functions to match the
  documentation
- Handle error code in response packages
- Add Error class to report an error code in addition to the error message

2.0.2:
- Use better markup in inline documentation
- Rework socket sharing between threads to fix (auto-)reconnection handling

2.1.0:
- Add authentication support to IPConnection and Master Brick API
- Make IPConnection locks proper members of the class instance
- Make Brick and Bricklet classes proper subclasses of Device
- Don't overwrite auto_reconnect option in set_timeout function

2.1.1:
- Add support for WS2811 and WS2812 to LED Strip Bricklet API

2.1.2:
- Add support for Color, NFC/RFID and Solid State Relay Bricklet
- Only use MSG_NOSIGNAL if it's really defined
- Remove CPAN package from ZIP file, include relevant files into the source/
  folder

2.1.3:
- (no changes)

2.1.4:
- Add support for RED Brick

2.1.5:
- Add DEVICE_DISPLAY_NAME constant to all Device classes
- Add functions for all Bricks to turn status LEDs on and off
- Avoid possible connection state race condition on connect
- Add support for IMU Brick 2.0, Accelerometer, Ambient Light 2.0,
  Analog In 2.0, Analog Out 2.0, Dust Detector, Industrial Analog Out,
  Industrial Dual Analog In, Laser Range Finder, Load Cell and RS232 Bricklet

2.1.6:
- Add missing constant for 19200 baud to RS232 Bricklet API
- Add error callback to RS232 Bricklet API
- Add set_break_condition function to RS232 Bricklet API
- Add unlimited illuminance range constant to Ambient Light Bricklet 2.0 API
- Break API to fix threshold min/max type mismatch in Ambient Light, Analog In
  (2.0), Distance IR/US, Humidity, Linear Poti and Voltage Bricklet API
- Break API to fix bool return type mismatch in Servo Brick
  (is_position_reached_callback_enabled and is_velocity_reached_callback_enabled
  function), Accelerometer Bricklet (is_led_on function) and Load Cell Bricklet
  (is_led_on function) API
- Avoid warnings about experimental reference access patterns
