Merge branch 'hotfix/2.2.3'
Merge branch 'release/2.2.4'
Merge branch 'develop'
In the zip archive manifest, exclude the /dist/development files.
Version 2.3.0.
Changelog tweaks.
Refactors the asset queueing helpers so that distribution packages still work when Omeka is in development mode.
Fixes the diff link in the 2.3 changelog header.