Minor reorganization & cleanup

Example/AFNetworking iOS Example.xcodeproj/project.pbxproj

@@ -142,8 +142,8 @@
 		F8E469551395739C00DB05C8 = {
 			isa = PBXGroup;
 			children = (
-				F8A847C4161F524200940F39 /* Default@2x.png */,
 				F8A847C2161F523E00940F39 /* Default.png */,
+				F8A847C4161F524200940F39 /* Default@2x.png */,
 				F8A847C0161F51A300940F39 /* Default-568h@2x.png */,
 				F8E469B71395759C00DB05C8 /* Networking Extensions */,
 				F8E4696A1395739D00DB05C8 /* Classes */,

Example/Classes/Models/User.m

@@ -33,8 +33,8 @@ NSString * const kUserProfileImageDidLoadNotification = @"com.alamofire.user.pro
 
 @implementation User {
 @private
-    __strong NSString *_avatarImageURLString;
-    __strong AFImageRequestOperation *_avatarImageRequestOperation;
+    NSString *_avatarImageURLString;
+    AFImageRequestOperation *_avatarImageRequestOperation;
 }
 
 @synthesize userID = _userID;