Merge branch 'dev' into f-fix-get-parents

CHANGELOG.md

Makefile

README.md

build.properties.d/00_default.properties

libs/bootstrap-5.0.0-beta3-dist.zip

libs/bootstrap-5.0.1-dist.zip

libs/bootstrap.bundle.min.js

misc/merge_js.sh

misc/merge_xsl.sh

misc/unit_test_http_server.py

src/core/css/webcaosdb.css

src/core/css/webcaosdb.less

src/core/js/annotation.js

src/core/js/caosdb.js

src/core/js/edit_mode.js

src/core/js/ext_applicable.js

src/core/js/ext_autocomplete.js

src/core/js/ext_cosmetics.js

src/core/js/form_elements.js

src/core/js/query_shortcuts.js