svn bridge to git-repositories
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one of the main reasons i still use github is that they allow me to clone a repository via `svn`.
While this might seem a bit backward, it helps tremendously with interoperability with pre-git projects that extensively use `svn:externals` (and there are still some good reasons to use `svn:externals` instead of `git submodules` - like being able to checkout subtrees).
Github supports this:
Personally, I wouldn't care if the bridge was read-only (though others might see that differently)
issue