Autoversion bugfix

What's Changed

• Handle no existing changelog by @Qalthos in #82
• Fix autoversion hook - exists is a function by @Qalthos in #83

Full Changelog: 1.1.0...1.1.1

Autoversioning hook

What's Changed

• Autoversion script by @Qalthos in #80
  • A new pre-commit hook autoversion will automatically update the version field in galaxy.yml as PRs merge.

Full Changelog: 1.0.1...1.1.0