Lucas Stomberg

This reverts commit e3d71cdf613e2ea885286a5e62d071a1c893b187, reversing changes made to e5b234a3a15075283db72f7b74d29439dac4c3cd. It is safer to assume the existence of /Applications/Xcode.app than /usr/include/CommonCrypto.

`Package.swift` exists in `master` to enable integration with SwiftPM but is unable to be referenced until a tag or release is created that includes it.

Standardize and clean up code.

Unable to compile/run on macOS

2

I have been unable to compile or run this for macOS. The README doesn't seem to give instructions for this since libgimp2.0-dev is unavailable with homebrew.

Comparison with Swift's CollectionDifference (SE-0240)

10

How does this compare with the Swift development proposal that plans to add Ordered Collection Diffing? Are you involved with that project in any way? [https://github.com/apple/swift-evolution/blob/master/proposals/0240-ordered-collection-diffing.md](https://github.com/apple/swift-evolution/blob/master/proposals/0240-ordered-collection-diffing.md)