* Implement ZipFsDir.glob
* ZipFile.checkIntegrity method
* non-MSDOS permission attributes
** See mail from Ned Konz to ruby-talk subj. "Re: SV: [ANN] Archive 0.2"
* Packager version, required unpacker version in zip headers
** See mail from Ned Konz to ruby-talk subj. "Re: SV: [ANN] Archive 0.2"
* implement small gui app on top, to exercise library and to discover
what features should be added to rubyzip next.
* implement storing attributes and ownership information
