[Swift 3] Support Swift Build with Latest Toolchain
[Swift 3] Support Swift Build with Latest Toolchain

ReSwift/ReactiveReSwift,ycfreeman/ReSwift,Swift-Flow/Swift-Flow,ReSwift/ReactiveReSwift,mpsnp/ReSwift,mpsnp/ReSwift,ReSwift/ReSwift,Swift-Flow/Swift-Flow,mpsnp/ReSwift,ReSwift/ReSwift,ycfreeman/ReSwift,ycfreeman/ReSwift,Swift-Flow/Swift-Flow,ycfreeman/ReSwift,ycfreeman/ReSwift,Swift-Flow/Swift-Flow,ReSwift/ReSwift,Swift-Flow/Swift-Flow,ReSwift/ReactiveReSwift