This release updates the project for Swift 4.2 compatibility.
- Disable CountableRange overloads in Swift 4.2 and above (#2, contributed by@kmiloaguilar)
- Fix typo by renaming removeAll(keepCapacity:) to removeAll(keepingCapacity:). The old name is still available through a deprecated compatibility definition.
- Fix deprecation warnings emitted by the Swift 4.1 and 4.2 compilers.