Drafts are saved using the username as filename. This must also be
encoded and decoded correctly. Because of NFC and NFD issues on Mac
HFS, an appropriate normalization was added to mac.pl.
As the username is also part of the cookie, this showed that the
Cookie content wasn't being encoded correctly, so that was fixed, too.
The Debian installation uses ext3 and therefore raw bytes for
filenames unlike the HFS filesystem of Mac OSX.
Copyright years were updated. The maintenance output of for drafts was
cleaned up.
