Added available attribute on a deprecated method

Author: ArtSabintsev

Zephyr.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "Zephyr"
-  s.version      = "2.2.0"
+  s.version      = "2.2.1"
   s.summary      = "Effortlessly synchronize UserDefaults over iCloud"
 
   s.description  = <<-DESC

Zephyr/Zephyr.swift

@@ -25,6 +25,9 @@ public class Zephyr: NSObject {
     /// If **true**, then NSUbiquitousKeyValueStore.synchronize() will be called immediately after any change is made.
     public static var syncUbiquitousKeyValueStoreOnChange = true
 
+    @available(*, deprecated: 2.2.1, unavailable, renamed: "syncUbiquitousKeyValueStoreOnChange")
+    public static var syncUbiquitousStoreKeyValueStoreOnChange = true
+
     /// The singleton for Zephyr.
     fileprivate static let shared = Zephyr()