Fixing warnings detected by -Weverything

Example/AFNetworking Mac Example.xcodeproj/project.pbxproj

@@ -198,7 +198,7 @@
 		F8129BF21591061B009BFE23 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0430;
+				LastUpgradeCheck = 0450;
 			};
 			buildConfigurationList = F8129BF51591061B009BFE23 /* Build configuration list for PBXProject "AFNetworking Mac Example" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -303,6 +303,7 @@
 			buildSettings = {
 				CODE_SIGN_ENTITLEMENTS = "AFNetworking Example.entitlements";
 				CODE_SIGN_IDENTITY = "Mac Developer";
+				COMBINE_HIDPI_IMAGES = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Prefix.pch;
 				INFOPLIST_FILE = "Mac-Info.plist";
@@ -316,6 +317,7 @@
 			buildSettings = {
 				CODE_SIGN_ENTITLEMENTS = "AFNetworking Example.entitlements";
 				CODE_SIGN_IDENTITY = "Mac Developer";
+				COMBINE_HIDPI_IMAGES = YES;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = Prefix.pch;
 				INFOPLIST_FILE = "Mac-Info.plist";

Example/AFNetworking iOS Example.xcodeproj/project.pbxproj

@@ -390,6 +390,7 @@
 				INFOPLIST_FILE = "iOS-Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 5.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				WARNING_CFLAGS = "";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Debug;
@@ -410,6 +411,7 @@
 				IPHONEOS_DEPLOYMENT_TARGET = 5.0;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				VALIDATE_PRODUCT = YES;
+				WARNING_CFLAGS = "";
 				WRAPPER_EXTENSION = app;
 			};
 			name = Release;

Example/Classes/Models/Tweet.h

@@ -26,10 +26,10 @@
 
 @interface Tweet : NSObject
 
-@property (readonly, assign) NSUInteger tweetID;
-@property (readonly, strong) NSString *text;
+@property (readonly) NSUInteger tweetID;
+@property (readonly) NSString *text;
 
-@property (readonly, strong) User *user;
+@property (readonly) User *user;
 
 - (id)initWithAttributes:(NSDictionary *)attributes;
 

Example/Classes/Models/User.h

@@ -27,12 +27,12 @@ extern NSString * const kUserProfileImageDidLoadNotification;
 @interface User : NSObject
 
 @property (readonly) NSUInteger userID;
-@property (strong, readonly) NSString *username;
+@property (readonly) NSString *username;
 @property (unsafe_unretained, readonly) NSURL *profileImageURL;
 
 - (id)initWithAttributes:(NSDictionary *)attributes;
 
-#if __MAC_OS_X_VERSION_MIN_REQUIRED
+#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
 @property (nonatomic, strong) NSImage *profileImage;
 #endif
 

Example/Classes/Models/User.m

@@ -25,11 +25,9 @@
 
 NSString * const kUserProfileImageDidLoadNotification = @"com.alamofire.user.profile-image.loaded";
 
-#if __MAC_OS_X_VERSION_MIN_REQUIRED
+#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
 @interface User ()
-#if __MAC_OS_X_VERSION_MIN_REQUIRED
 + (NSOperationQueue *)sharedProfileImageRequestOperationQueue;
-#endif
 @end
 #endif
 
@@ -59,7 +57,7 @@ NSString * const kUserProfileImageDidLoadNotification = @"com.alamofire.user.pro
     return [NSURL URLWithString:_profileImageURLString];
 }
 
-#if __MAC_OS_X_VERSION_MIN_REQUIRED
+#ifdef __MAC_OS_X_VERSION_MIN_REQUIRED
 
 @synthesize profileImage = _profileImage;