This also adds a mechanism for indicating that DB userdata upgrades
after a certain version are minor and shouldn't show "Upgrading
database…" or create a pre-upgrade backup.
Instead of My Publications being a separate library, have it be a
special collection inside My Library. Top-level items can be dragged
into it as before, and child items can be toggled off and on with a
button in the item pane. Newly added child items won't be shown by
default.
For upgraders, items in the My Publications library will be moved into
My Library, which might result in their being duplicated if the items
weren't removed from My Library. The client will then upload those new
items into My Library.
The API endpoint will continue to show items in the separate My
Publications library until My Publications items are added to My
Library, so the profile page will continue to show them.
The Firefox French language pack contains some mistakes regarding
the short form of months. As a consequence, French month parsing
didn't work.
Please note that these values aren't even the correct abbreviations
but only the three or four first letters of the correct abbreviations.
See the French CSL locale for the correct abbreviations.
Month values from the Firefox language packs are included in a
JSON file used by `Zotero.Date.getMonths()`. `getMonths(true)` includes
English months as well.
The JSON file should be bundled with the connectors as well, and
Zotero.Date.init() should be updated to populate the month data from
that.
* Mark feedItems read in a single batch SQL update
* Automatically remove old feed items
* User-facing preference globally and per-feed for feed item expiration
