Merge pull request skulpt#1270 from skulpt/workflows

Simple workflow to run unit tests

new release

Tag Good stuff before moving to py3 grammar

call it 1.0.0

bump

bug fixes and performance improvements

add generated doc to current skulpt.org

Better semantic versioning would call for this to be 10.0 to reflect …

…the major feature adds of the ability to inherit from builtins.

bump version for inheriting builtins!

bump

Lots of good additions. This release includes the suspensions feature…

… which has been well tested in the wild for over a month now.