Prior 5.2.2p1 ios build would fail upload to testflight/appstore if info.plist did not have UIRequiresFullScreen = true. This fixes that

IosPostBuild.cs

using System.IO;
using UnityEngine;
using UnityEditor;
using System.Collections;
using UnityEditor.Callbacks;

#if UNITY_IOS
using UnityEditor.iOS.Xcode;
#endif

public class IosPostBuild {

	[PostProcessBuild]
	private static void OnProcessPostBuild (BuildTarget buildTarget, string path)
	{
		#if UNITY_IOS
		if (buildTarget == BuildTarget.iPhone ) {
			// Add url schema to plist file
			string plistPath = path + "/Info.plist";

			PlistDocument plist = new PlistDocument();
			plist.ReadFromString(File.ReadAllText(plistPath));

			// Get root
			PlistElementDict rootDict = plist.root;
			rootDict.SetBoolean("UIRequiresFullScreen",true);
			plist.WriteToFile(plistPath);
		}
		#endif
	}
}