[NPG] Attach supplementary info and some useful links
Behavior can be controlled by extensions.zotero.translators.attachSupplementary and supplementaryAsLink
Fix "multiples" mis-detection in some rare cases
Add support for some japanese nature.com pages
[NPG] Fix false "multiple" in detectWeb
[NPG] Correctly handle corporate authors
[NPG] Update tests without hidden prefs
Merge pull request #549 from aurimasv/npg-supp

[NPG] Attach supplementary info and some useful links