* Update .gitignore file [Carthage]
* Add Cartfile.resolved file
Quoting from Carthage's README.md on Github:
"Along the way, Carthage will have created some build artifacts. The most important of these is the Cartfile.resolved file, which lists the versions that were actually built for each framework. Make sure to commit your Cartfile.resolved, because anyone else using the project will need that file to build the same framework versions."
* Added Playground-Swift with two example pages.
* Added PhotoWithOutsetIconOverlay example.
* Added an extra tip in swift playground.
* Added HorizontalStackWithSpacer to the swift playground.
* Added fileprivate for some global variables.
* Added private to the setupNodes functions
* Added solutions to common issues.
Added a sample project that will demonstrate how to manually display nodes. Removed the UIWindow hack that coupled display of nodes with Core Animation transactions.