Not quite there upgrade overlays

What's Changed

• Lousy non-working overlay hack by @taun in #7

Full Changelog: v2.15.3...v2.16.0a

Updateable Overlay Definitions

What's Changed

• Taun/overlay updates by @taun in #5
• Match release version name by @taun in #6

Full Changelog: v2.15.2...v2.15.3

v2.15.2

What's Changed

• Update from remote 2 15 2 by @taun in #4

New Contributors

• @taun made their first contribution in #4

Full Changelog: v2.13.40...v2.15.2

v2.13.40

• Customizes upstream mix.exs for bbb_purple
• Adds QMI drivers