#626664 by yched, Amitaibu: Fixed 'Add existing field' in user doesn't show fields created in content types.

#609100 by bleen18, seutje, and David_Rothstein: Should not be able to re-add same shortcut to same set twice.

#605924 by ksenzee: Rename default.sites.php to example.sites.php. There is no 'default' about it, and it also screws up tab completion. :P

#606526 by axyjo and scor: Remove trailing whitespace and add newlines at end of files. Sorry, folks! But it is after code freeze. :)

- Patch #614358 by lisarex, Bojhan: UI text improvements to 'Delete' content type confirmation message.

#560944 follow-up by brandonojc, seutje, and Davy Van Den Bremt: Move collapsible fieldset logic from theme_fieldset() hook to form_process_fieldset().

#521852 by brandonojc, Everett Zufelt, mgifford, and sun: Provide semantic markup to local tasks to indicate an active task.

#541568 by brandonojc, mgifford, Everett Zufelt, and sun: Fixed Link to expand / collapse fieldsets has poorly accessible link text.

Roll-back of #595084; type-hinting parameters at stdClass makes it so you can't ever pass in another type of class.

- Patch #623992 by catch: performance improvement: reduce {system} database hits on every page request.

- Patch #614294 by lisarex, yched, Bojhan: remove UI description that says what is stored in the field.

#600032 by c960657: Removed browser.inc. Please see http://drupal.org/project/browser if you'd like to help with a more fleshed-out abstract browser for possible inclusion in D8.