Note: The Mac App is now signed, making it easier to install
  * However, the signed Mac app cannot install ESP VM's due to Apple security restrictions
  * For those with ESP boards, an unsigned Mac app that *can* install ESP VM's is available in the "standalone" folder. Or you can use esptool.py to install VM's on your ESP boards.

System
* Don't poll buttons if there are no button hat scripts. This allows the button pins on a micro:bit to be used as output pins.
* Initial support for Teensy 3.1/3.2 board
* Implement temperature primitive on Clue board
* Limit graphing data rate to accommodate slower computers

Examples
* Update Circuit Playground Simon game

Libraries
* José García's
* Updated BMP library (thanks, José!)
* New VL53L1x library (thanks, José!)
* Updated Finch library (thanks, Tom and Bambi!)

Translations
* Chinese translation tweaks (thanks, Simon!)
* Updated Uzbek and Русский (Russian) translations (thanks, Nargiza!)