Newest version of rubyzip uses "Zip::File.open"

http://stackoverflow.com/a/18538771/257583
Make sure that future changes to rubyzip doesn't break this recipe
You must have read/write access to Play when running it

http://stackoverflow.com/a/10576282/257583
Merge pull request #3 from amosjyng/master

Fixed rest of issues preventing recipe from completing successfully