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)
Add a button to generate article aliases via "edit multiple" (see #6628)
Do not compress the SCSS/LESS output in debug mode (see #6886)
Add the "customizeSearch" hook (see #5223)
Move the front end related routines from `Template` to `FrontendTemplate`
Do not render forms in the back end preview (see #6605)
Adjust the "external style sheet" explanation (see #6887)
Add the `Input::getUnusedGet()` and `Input::setUnusedGet()` methods
Fix the CSS formatting of the page/file selector widget
Use a deferred Ajax request to add a page to the search index (see #6566)
Remove two redundant "TYPOlight" references
Add a log entry if a page is not rendered because of unused GET parameters
Update the example website
Remove the command scheduler JavaScript from the "fe_page" template