Idutils

- Adds support for HAL identifiers.

- Changes URL resolution for bibcodes to use https://ui.adsabs.harvard instead
of https://adsabs.harvard.edu/abs/.
- Allows choosing HTTP/HTTPS for any generated URL by ``idutils.to_url``.

- Adds support for genomic identifiers: SRA, BioProject, BioSample, Ensembl,
UniProt, RefSeq, GenBank/RefSeq.
- Fixes bug in bibcode detection for non-capitalized journals.

- Fixes bug causing invalid DOIs to be accepted.

- Fixes handling of unicode characters in DOIs.
- Adds support for APS style arXiv identifiers.

- Removes `Python 3.3` from a list of supported Python versions and
adds `Python 3.6`
- Moves from `isbnid (v0.3.4)` to `isbnid_fork (v0.4.4)` library.