Internal Changes
- Parallelized combining phase that yields 5-10x speed improvement for New York Times codebase
- Switched cache logic to rely on file modification date instead of content Sha256
- Additional benchmark logs showing how long does each phase take
- update dependencies to fix cocoapods setup when using Swift 5.0 everywhere. Update Quick to 2.1.0, SourceKitten to 0.23.1 and Yams to 2.0.0