[Unity] Fix for Unity UWP/Windows Phone

https://github.com/EsotericSoftware/spine-runtimes/issues/495

spine-csharp/src/SkeletonBinary.cs

@@ -67,7 +67,9 @@ namespace Spine {
 			Scale = 1;
 		}
 
-#if WINDOWS_STOREAPP
+		#if !(UNITY_5 || UNITY_4 || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
+		#if WINDOWS_STOREAPP
+
 		private async Task<SkeletonData> ReadFile(string path) {
 			var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
 			using (var input = new BufferedStream(await folder.GetFileAsync(path).AsTask().ConfigureAwait(false))) {
@@ -80,26 +82,21 @@ namespace Spine {
 		public SkeletonData ReadSkeletonData (String path) {
 			return this.ReadFile(path).Result;
 		}
-#else
+		#else
 		public SkeletonData ReadSkeletonData (String path) {
-#if WINDOWS_PHONE
-			using (var input = new BufferedStream(Microsoft.Xna.Framework.TitleContainer.OpenStream(path)))
-			{
-#else
-#if UNITY_WP8 || UNITY_WP8_1
-            using (var input = new FileStream(path, FileMode.Open))
-			{
-#else
-            using (var input = new BufferedStream(new FileStream(path, FileMode.Open))) 
-            {
-#endif
-#endif
+		#if WINDOWS_PHONE
+			using (var input = new BufferedStream(Microsoft.Xna.Framework.TitleContainer.OpenStream(path))) {
+		#else
+			using (var input = new BufferedStream(new FileStream(path, FileMode.Open))) {
+		#endif // WINDOWS_PHONE
 				SkeletonData skeletonData = ReadSkeletonData(input);
 				skeletonData.name = Path.GetFileNameWithoutExtension(path);
 				return skeletonData;
 			}
 		}
-#endif
+
+		#endif // WINDOWS_STOREAPP
+		#endif // !(UNITY)
 
 		public SkeletonData ReadSkeletonData (Stream input) {
 			if (input == null) throw new ArgumentNullException("input cannot be null.");