Add files via upload

v21 production stable version (archiving)

director + meshcast doesn't work in this version, but it's pretty stable otherwise

this branch is just as an archive until v22 is stable

Merge pull request steveseguin#930 from steveseguin/v20.x-dev-patches

V20.4 merge

Update README.md

Merge pull request steveseguin#901 from steveseguin/v19.3

Version 19.4

Merge pull request steveseguin#900 from steveseguin/v19.3

V19.3

Merge pull request steveseguin#894 from steveseguin/19.1

Version 19.1

Merge pull request steveseguin#876 from steveseguin/v18.3beta

v18.3 Release

Update index.html

bug fixes + rebrand

- midiin/out issue with indexing fixed
- h264 broadcast support no longer default
- vdo.ninja branding