Skill Tree v0.7.0

Automated source mirror of Skill Tree v0.7.0.

Requirements: macOS + Python 3.9+ on your PATH (Skill Tree runs
its hub.py helper). Install with brew install python or the macOS
installer from python.org.

macOS app: the attached .app is not code-signed or notarized.
After unzipping into /Applications, clear the quarantine flag:
xattr -dr com.apple.quarantine "/Applications/Skill Tree.app"