0.0.4
Support zip command (OSX)
Merge pull request #38 from tjwudi/master

Support zip command (OSX)
README mention there's no Linux entries yet
Add ls.
Merge pull request #39 from kud/formula.ls

Add ls.
fix broken rsync.md
zip (style fix) & unzip (newly created)
Merge pull request #42 from tjwudi/master

fix broken rsync.md & update zip command & add unzip