Load default when appending to/removing from an unset omero.web property
Merge pull request #2026 from joshmoore/rebased/develop/11934-bfmemoizer-dir

Fix Memoizer injection (Fix #11934) (rebased onto develop)
Fix variable
Add tests for omero.web property default value retrieval
Monkeypatch ConfigXml so that config.xml is not being read
Fix flake8 errors
Do not allow multi-export of OME-TIFF. Reset the large image flag.
Removing all elements should result in empty list instead of unset value
Set the enabled flag depending on state (see #10495)
Add jar under 3rd-party.
Play movie across small t if number > 1.
Reset icon when no longer playing movie across t.
Update correctly the T for FLIM series.
Update date in header.
merge develop -D org -I include -E exclude: PR 1712 (Create release source artifact containing all submodules)
merge develop -D org -I include -E exclude: PR 1880 (Use getThumbnail() to speed up import. (see #11783))
merge develop -D org -I include -E exclude: PR 1905 (Add append/remove subcommands to `bin/omero config`)
merge develop -D org -I include -E exclude: PR 1956 (Login button)
merge develop -D org -I include -E exclude: PR 1960 (Remove cut link 11882)
merge develop -D org -I include -E exclude: PR 1966 (custom login logo in settings.py)