[doc] Add 3.25 release notes [ci skip]

[repository] possibility to disable connections pooling Add a new configuration option 'connections-pooler-enabled' (default yes). If set to no, disable connection pooling and open new connections to the database on demand. This allow to use CubicWeb with other poolers (such as pgbouncer).

[js] Fix loading image URL

[migration] Move pyramid-related migration after "entities" table modifications Otherwise, we getting into `add_entity_type('CWSession')` we try to insert a CWEType without any 'asource' column (per 3.24's schema) whereas the backend still wants it. Closes #17054035.

Merge 3.24.5 into default branch

[entities] Introduce an IDublinCore adapter Move all dc_ methods from AnyEntity to the new IDublinCore adapter and proxy them through a __getattr__ method on AnyEntity. Current test suite should be enough. Closes #3119992.

[skeleton] Add an entry point and configuration for running a Pyramid application We add a `pyramid_main` function in __init__.py that instantiate the WSGI application using "cubicweb.pyramid"; this is defined as an entry point (in setup.py) so that pserve_ can find it. Alongside comes a development.ini file which includes basic settings so that running a Pyramid+CubicWeb application works (only the "instance=<appid>" may be passed as a command-line argument). Logging is also configured there, but only includes the cube at stake and cubicweb (others could be added if needed). .. _perse: \ http://docs.pylonsproject.org/projects/pyramid/en/1.8-branch/pscripts/pserve.html

[cwconfig] Issue a warning when a "core" ctl plugin failed to load This is often because of a missing dependency, the warning would indicate this hopefully.

[dataimport] Fix "existing_relations" parameter name in ExtEntitiesImporter

[ical] Create ICal events or todos depending on component type returned by adapter