dev branch for v0.12.0 work

We've still in the 0.10.x/0.11.x cycle, send stuff here that has API/DB changes for eventualy 0.12.x

update: this will become 0.12.x

Changelog drafts

Please edit this list, which might have less chance of conflict than editing the changelog directly.

• changed: server stores json annotation data in the database instead of in .plom files on disc.
• changed: classlist upload can be forced, allowing one to replace an existing classlist
• support for external databases
• added: tech preview of a web-interface for configuring a Plom server

TODO

• update changelog here
  • then checkin
• branch current main to 011x, for future patch updates there
• merge to main