Fixes for recentdocuments kioslave documentation

- single slash for recentdocuments:/ URI;
- the Application Menu has the configuration option (Application Starter
  does not seem to exist);
- reorder the list of places where the kioslave can be used to match the
  the order used to describe them;
- update the release date and version;
- split the content of the title.

REVIEW: 129592