gnus-icalendar.el (gnus-icalendar-identities): Make changing the
value of gnus-icalendar-additional-identities work without restart.
gnus-uu.el: Fix temporary files deletion bug
lisp/ChangeLog: Fix timestamp of last commit
Remove [backspace] key binding because it shadows DEL (bug#16035)
lisp/gnus/gnus-spec.el (gnus-tmp-article-number): Remove duplicate defvar