Don't fail during file upload if file doesn't yet exist
Show patents by issue date in timeline view
Fix "req is not defined" error message (which indicates a WebDAV error)
Add comments to letter type in system.sql. No changes to SQL
Add US bankruptcy courts to jurisdiction pool
Upgrade citeproc-js to version 1.0.489
Merge branch '4.0' of https://github.com/zotero/zotero into multi-4.0-dev
Comments against the interview type. Again, no change to SQL.
Small refinements to display of interview and letter in the centre pane
Populate changes to non-English locales