Throw an error if there is a symlink that points outside the zip (closes #14)
Merge pull request #15 from bower/symlink-safety

Throw an error if there is a symlink that points outside the zip (closes #14)
Added an extra check for file type. (closes bower/bower#991)

If the file name ends with '/', we treat it as a directory even if the
metadata says it isn't.
Merge pull request #17 from bower/detect-unmarked-directories

Added an extra check for file type. (closes bower/bower#991)
Bumped version
Default to MS-DOS type files if the platform is not set or not one we know
Add `strip` option