0.17.4: UnsafeMutableSiameseCat

Breaking

• None.

Enhancements

• Generate Swift declaration for more Objective-C methods.
  Zheng Li
  #376

Bug Fixes

• Fix running sourcekitten version when building with Swift Package Manager.
  JP Simard

• Fix crash in lineAndCharacter(forByteOffset:) with strings including
  multi-byte unicode characters.
  Marcelo Fabri
  realm/SwiftLint#1006

• Fix compilation with latest Swift 4 snapshots.
  Norio Nomura