Dnaio

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* :pr:`110`: Added ``id`` and ``comment`` properties to ``SequenceRecord``.

--------------------

* :pr:`99`: SequenceRecord initialization is now faster, which also provides
a speed boost to FASTQ iteration. ``SequenceRecord.__new__`` cannot be used
anymore to initialize `SequenceRecord` objects.
* :pr:`96`: ``open_threads`` and ``compression_level`` are now added
to `~dnaio.open` as arguments. By default dnaio now uses compression level
1 and does not utilize external programs to speed up gzip (de)compression.
* :pr:`87`: `~dnaio.open` can now open more than two files.
The ``file1`` and ``file2`` arguments are now deprecated.

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* :pr:`85`: macOS wheels are now also built as part of the release procedure.
* :pr:`81`: API documentation improvements and minor code refactors for
readability.

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* :pr:`79`: Added a `~dnaio.records_are_mates` function to be used for checking whether
three or more records are mates of each other (by checking the ID).
* :pr:`74`, :pr:`68`: Made FASTQ parsing faster by implementing the check for
ASCII using SSE vector instructions.
* :pr:`72`: Added a `tutorial <https://dnaio.readthedocs.io/en/latest/tutorial.html>`_.

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* Preliminary documentation is available at
<https://dnaio.readthedocs.io/>.
* :pr:`53`: Renamed ``Sequence`` to `~dnaio.SequenceRecord`.
The previous name is still available as an alias
so that existing code will continue to work.
* When reading a FASTQ file, there is now a check that ensures that
all characters are ASCII.
* Function ``record_names_match`` is deprecated, use `~dnaio.SequenceRecord.is_mate` instead.
* Added `~dnaio.SequenceRecord.reverse_complement`.
* Dropped Python 3.6 support as it is end-of-life.

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* :pr:`34`: Fix parsing of FASTA files that just contain a comment and no reads