Summary:
upgrade typeorm version, so Grist can run against newer versions of postgres.
Dusted off some old benchmarking code to verify that important queries don't get slower. They don't appear to, unlike for some intermediate versions of typeorm I tried in the past.
Most of the changes are because `findOne` changed how it interprets its arguments, and the value it returns when nothing is found. For the return value, I stuck with limiting its impact by emulating old behavior (returning undefined rather than null) rather than propagating the change out to parts of the code unrelated to the database.
Test Plan: existing tests pass; manual testing with postgres 10 and 14
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3613
Summary: For grist-ee, expect an activation key in environment variable `GRIST_ACTIVATION` or in a file pointed to by `GRIST_ACTIVATION_FILE`. In absence of key, start a 30-day trial, during which a banner is shown. Once trial expires, installation goes into document-read-only mode.
Test Plan: added a test
Reviewers: dsagal
Reviewed By: dsagal
Subscribers: jarek
Differential Revision: https://phab.getgrist.com/D3426
