Catch Swift exceptions when sending form data via e-mail (see #6941)
Fix the file permissions of the DropBox files
Update the example website
Update the vendor libraries
Add more blocks to the main template "fe_page" (see #6934)
Improve the handling of Soap exceptions in the extension repository (see #6912)
Reverse the "trigger indexing via Ajax" logic
Create the debug bar in a separate method
Flush all data after `Template::output()` has been run
Encapsulate the cache and search index routines in separate methods
Do not index the debug output for searching
Merge branch 'feature/rework-deferred-indexing' into release/3.3.0