Revert "Remove sourceforge links in all release announcements"

This reverts commit fb4318e7dda78215c4611eeb94778c1b9ed47819.
Revert "Remove bitcoin-security mailing list link"

This reverts commit d0076f28b077dba4a42d6629c9bfbe31aac5c793.
Revert "Remove sourceforge links in all alerts"

This reverts commit 52fdf947626843d05b37e66a3748fbfa20deda78.
Revert "UGLY HACK removal of sourceforge from translations"

This reverts commit 10724ec96d785c83e2855d39a451fdee881486ca.