Git-browse

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- Switch from pkg.go.dev to godocs.io
- Cleanup
- Update dependencies

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- Update python packaging
- Test python packaging
- Update dependencies

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- Remove possibility of double slashes when generating phabricator URLs
- Drop support for python 3.6; add support for python 3.10
- Update dependencies

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- Default to sourcegraph links if phabricator configuration is not available
- Update readme

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- Try to read default branch from git configuration for generating bitbucket, github, and gitlab URLs

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- Add support for gitlab repositories