NOTE:
This release adds several new blocks and changes how colors are representated.
Please update the MicroBlocks firmware on your board.

System
* Color representation is now 24-bit RGB; VM converts to NeoPixel or TFT representation
* Add timer and resetTimer blocks
* Add "reset and restart" block (advanced)
* Rename 'local _ _' to 'initialize local _ to _' and make it an advanced block
* Allow switching between related operators like arithmetic via block menu
* Add NeoPixel support for nrf52 boards
* Add support for Adafruit Clue (https://www.adafruit.com/product/4500)
* Change internal file system implementation on Mac OS to allow app to be signed
* Make Mac version run on systems as old as Mac OS 10.6 (not yet tested on systems before 10.10)
* Internal tweaks to pin mappings on CPX and CPX Bluefruit
* Increase range of light sensor on CPX and CPX Bluefruit to 0-1023

Browser (Chrome and Edge only)
* Streamline connecting by going directly to Chrome serial port selection dialog
* Improve connection robustness
* Add clipboard support

Library
* Make displayCharacter accept numbers and display first digit (LED Display)
* Change default display face
* Make tonePin default to -1 to tell VM to use the built-in speaker if there is one
* Update NeoPixel, TFT, and Turtle libraries to use the new color representation
* Range in "color" block is now 0-255 for red, green, and blue (it was 0-31)

Translations
* Chinese (thanks Simon!)

Bug Fixes
* Fix: Accelerometer not working on CPX Bluefruit
* Fix: browser version: scripts should be saved when board is connected
* Fix: "inform" dialog boxes too narrow
* Fix: Flash memory bug on nrf52 boards that sometimes results in corrupted scripts