Xcode 9.3 and Swift 4.1 Support

Released on 2018-04-10. All issues associated with this milestone can be found using this filter.

Updated

• The Xcode project and Travis CI to support Xcode 9.3.
  • Updated by Christian Noon in Pull Request #6.

Fixed

• Compiler warnings in aggregate context generation due to Swift 4.1 compiler.
  • Fixed by Christian Noon in Pull Request #6.
• Compiler warnings in CodableBinding protocol extension with associated type typealias.
  • Fixed by Christian Noon in Pull Request #6.