. entry names will be converted to ascii. zip works with cp437
when 7zip support will be added, unicode string will be supported
. path and filenames are now encoded using php_stream_path_param_encode
if the filename/path is used as entry name, it is converted to ascii
. the stream (getStream and zip://) needs some tweak. I'm not sure if it
should return unicode or binary, neither how to change the default. For
now it returns unicode (seems to be the default :)
comments/suggestions welcome