Allow to switch between the page and file picker in TinyMCE (see #6974)
Correctly show the "you need to be logged in to comment" message (see #7031)
Add a CSS class indicating the number of columns in a gallery (see #7138)
Add the "unlink" button to TinyMCE and fix the picker switch label
Only create one `DcaExtractor` instance per table (see #7324)
Remove the H2 sub-headlines in the back end (see #7248)