John Boiles / Blocks With Screens - History

Add fancy fireworks, text and logo animations, and sleep mode

Add Driver install instructions for Windows

- Fixes #8

Vblox emscripten 2 (#10)

* added emscripten stuff

* change random() to time_random()

* some files needed vector definition

* added random.h

* trying again

* more random

* changed time_random() to randomf()

Fix angle randomization (#9)

`random` returns a `long`. `random(TAU)` produced an integer between 0 and 6. So the angle of the sparks always came out along the points of a hexagon. By converting to a float before scaling we can distribute the sparks more evenly around the explosion point.

Keep (disabled-by-default) configs for MMA8452Q accelerometer for old blocks (#6)