Some archive managers use the machine encoding to generate the file name and
comment. The user can recover the content of a file not encoded in UTF-8
but can't do anything for the file name. This new option adds the
ability to decode file names and comments with a custom algorithm.
This option allows the user to generate a zip file with a custom encoding
for the entry file name / comment. See also "decodeFileName" in load().
Not using UTF-8 when generating a zip file is maybe asking for troubles but
some archive managers (Windows Compressed Folders for example) don't
support well unicode stuff.