Upgrade to latest recommended xcode settings for example OSX project ("Automatically detect target architecture")

Author: marcuswestin

Example Apps/ExampleApp-OSX.xcodeproj/project.pbxproj

@@ -152,7 +152,7 @@
 		2C136A1917641106004C7401 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0460;
+				LastUpgradeCheck = 0510;
 				ORGANIZATIONNAME = "Marcus Westin";
 			};
 			buildConfigurationList = 2C136A1C17641106004C7401 /* Build configuration list for PBXProject "ExampleApp-OSX" */;
@@ -224,7 +224,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_64_BIT)";
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_OBJC_ARC = YES;
@@ -257,7 +256,6 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
-				ARCHS = "$(ARCHS_STANDARD_64_BIT)";
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_OBJC_ARC = YES;