Maintenance release: fix for 9-character classic bibstems

For the case of nine-character classic bibstems -- like abcd.conf or qxyz.data, we need to set the bibcode volume to an empty string, so that the resulting string concatenation will yield a 19-character bibcode.

Maintenance release: Wiley updates, journal name lookup

Merge pull request #27 from seasidesparrow/wiley_spie.20240402

Wiley spie.20240402

Maintenance release: optionally specify volume when creating bibcode

Prior releases allowed the user to specify the bibstem when bibcodegenerator was invoked. This update allows the user to also specify the volume, for cases where a bibcode-formatted volume can't be generated from the available metadata in the record.

Maintenance release: fix for author initials from collaborations (bibcode generator)

Previously the bibcode generator was only getting the author initial if authors[0].name.surname existed. Now it will check for name.collab as well.

Maintenance release: Elsevier, SPIE refsources

Merge pull request #24 from seasidesparrow/refpub.20240220

adding refsource publishers

Bugfix release

Fixes issue with ISSN lookup in local file

Maintenance release, minor fixes

• handles pageid starting with T
• handles Icelandic author initials Þ and Ð

Maintenance release

Adds modifications from PR #19

Pre-production release

• Bibcode generation updates
• Refwriter update

Adds to journals to IOP; strips leading spaces from author name before author initial is extracted

Merge pull request #15 from seasidesparrow/iop_fixes.20231025

fix: minor issues discovered in IOP parsing