The XML layer of the core was already divided into new core modules, however
the resource bundle in the core still contains all the keys. The keys should
be divided into separate resource bundles in the new modules.
Target milestone was changed from '3.4' to TBD.
Let's not forget other things. E.g. I found that Templates/Mount/ is
in core-ui.jar yet its *.html descriptions are in core.jar!
I guess I own this now.
Some fixes done as part of issue #19443. Still a number of resource
bundle strings that are in the wrong place, however. Can't promise to
clean up for 4.0 due to time constraints.
Similarly, a number of icons etc. remain behind.
Still as valid as ever. Difficult to automate this kind of work.