Changed
- Update vendored trimAl to `d89ffc3` (`2.0_RC`).
- Use `scoring-matrices` package to get a base for the `SimilarityMatrix` class.
- Rename `backend` to `platform` for all trimmer classes.
- Use trimAl platform-specific code to accelerate computations.
Fixed
- Missing trimmer classes in API documentation.
Removed
- Outdated platform-specific code.
- `archspec` dependency (replaced by `cpu_features` used internally in trimAl).