Create a new version if a member changes their data in the front end
Allow to override the default module template (see #4547)
Clean up the slider and accordion elements
Allow to override the default content element template (see #4547)
Improve the new "custom module/element templates" feature (see #4547)
Add additional style sheet types
Set the import path to the files directory and fix the style sheet type in the back end
Update the example website
Add `scss` and `less` to the list of allowed upload file types (see #5483)
Update TinyMCE to version 4.0.20
Simplify the RTE inclusion logic and adjust the config files to TinyMCE 4
Reduce the padding of the TinyMCE status bar
Adjust the "insert template" routines
Add a custom TinyMCE skin which integrates a bit more into the back end
Make the TinyMCE link and image dialogs work with the Contao page and file picker
Remove the old "typolinks" plugin
Add a tiny bit of contrast by changing the font color to `#444`
Update TinyMCE to version 4.0.20 (see #1495)
Merge branch 'feature/tinymce4' into develop

The feature set is now the same as it was before with TinyMCE 3.5. There are still some open feature requests, such as a link picker for files and news or the usage of UUIDs in image tags.
Allow to edit SCSS and LESS files in the file manager (see #5483)