- This makes all scripts more robust and fixes a specific problem with index-alphabetic-browse.sh where it would not resolve VUFIND_HOME correctly when invoked from within the VuFind directory with no environment variable set.

- This corrects a bug that prevented apostrophes from working correctly as thousands separators.

Error description in the Sierra REST API is optional, while name is not, so fall back to name if there's no description. Also use empty() instead if isset() to avoid considering code 0 an error.

A block of HTML is copied to make a template; some of the id elements were being
removed, but 2 were left on causing Lighthouse to complain about
duplicate ids.

SortSite flags "Strong" as invalid markup that could trip up
a screen reader.

SortSite flags "Strong" as invalid markup that could trip up
a screen reader.

- Improves OAI-PMH validation.

- Resolves VUFIND-1294.