Rename a variable correctly from $month to $day.
In get_event_link(), use return instead of echo.
In the event category breadcrumbs produced by tribe_get_events_title(),
display all ancestor event categories.
Only display end time in The Events Calendar widget if end date is equal begin date.

(German) example:
4. Februar 2013 19:00 – 22:00
instead of previously
4. Februar 2013 19:00 – 4. Februar 2013 22:00
Add year list views of events that can be accessed via URLs such as events/2012.

Useful e.g. for tracking past events on chronicle websites.
Add a 'day' clause to tribe_get_events_title().
Wrap list header in a <header> tag, and add a comments link.
Add an Edit post link to views/list.php.
Only show previous and next post links if there are any previous or next posts, respectively.
Change previous and next link formatting to be more uniform with Wordpress core (theme) equivalents.
In the single events view's header, add a link back to the corresponding year.
Display "Uhr" ("o' clock" in German) after times
(which in German is quite common to write after times).
Customize German translation for the Goldhauben website.