Fix compiler warning#22

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benbahrenburg wants to merge 4 commits intozelic91:masterfrom

benbahrenburg:Fix-Compiler-Warning

Commits on Dec 30, 2016

Fix compiler warning
benbahrenburg
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Commits on Mar 28, 2017

Update compiler fix Xcode 8.3
benbahrenburg
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Commits on Oct 13, 2017

update for swift 4
benbahrenburg
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Commits on Oct 14, 2017

Swift 4 upgrade
benbahrenburg
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