emacs 24.4

Update to latest stable release, remove obsolete patches, remove devel version, remove outdated Japanese patch (pending update from [MacEmacs JP](http://sourceforge.jp/projects/macemacsjp/)), use HTTPS on homepage and mirror, change single quotes to double.
@DomT4 @JackNagel Right you are. I meant to do that and then forgot. Thanks for the reminder.