Updated project to require Swift 4.2 to be able to compile it with Xc…#206

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mansbernhardt wants to merge 2 commits intomatthewpalmer:masterfrom

mansbernhardt:feature/swift-5

Commits on Mar 27, 2019

Updated project to require Swift 4.2 to be able to compile it with Xcode 10.2 and the Swift 5 compiler.
mansbernhardt
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Commits on Mar 28, 2019

Updated swift version to 4.0 instead as that is the lowest that Swift 5.0 compiler supports.
mansbernhardt
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