1.1.0
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* Switch to a four-heap instead of a two-heap, to improve the cache locality
on large lists.
* Fix soundness problems in the heapsort, if the comparison function panics
while sorting.
1.0.0
-----
* Forked from [veddan/rust-introsort], because it didn't run on stable Rust.
[veddan/rust-introsort]: https://github.com/veddan/rust-introsort