Add the "colorizeLogEntries" hook (see #5803)
Also convert paths without delimiter in `Combiner::fixPaths()` (see #6417)
Render the table summary as `<caption>` in HTML5 (see #6295)
Adjust the example website
Add the "getLanguages" hook (see #6545)
Only float the list elements of the gallery, not the pagination menu
Use the `html5shiv-printshiv.js` script in the front end (see #6293)
Revert 'Make the shell scripts more portable'

https://github.com/contao/core/commit/0b240b94e570e08d56346f2859b16b4b9a3f9044#commitcomment-6004033
Only override element and module templates in the front end (see #6878)
Add a pagination menu at the listing bottom (see #6377)
Use `Model::createCollection()` to create a model collection object (see #6456)