Update project settings, target settingsg, and source code to work wi…#7

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perlmunger wants to merge 1 commit intorelevante:masterfrom perlmunger:master

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Commits on Apr 18, 2016

Update project settings, target settingsg, and source code to work with iOS 8+ only and with Swift 2.2 on Xcode 7.3
skyeroad
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