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This could be a breaking change if you were relying on events
without an explicit object being broadcast from UIApplication (iOS)
or NSApplication (macOS) as the object is now set as nil if not
specified so bumping the version number to 5.0.0.

There was no reason for it to be 9.2

* Compiles with Swift 3.0.1

As per https://github.com/apple/swift-evolution/blob/master/proposals/0103-make-noescape-default.md

Also, update demo to add example of event posting.

In OS X conditional.

Specify that the include should go in the Cartfile.

No source changes required. Updates project files.