Revert "Automatic translation to ARC for sbjson-ios + sbjson-iosTests"

This reverts commit d39010f.

Author: cdoucette

SBJson.xcodeproj/project.pbxproj

@@ -1021,11 +1021,10 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
-				CLANG_ENABLE_OBJC_ARC = YES;
 				DSTROOT = /tmp/sbjson_ios.dst;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "sbjson-ios/sbjson-ios-Prefix.pch";
-				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
+				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				HEADER_SEARCH_PATHS = (
 					include/,
 					"$(BUILT_PRODUCTS_DIR)/usr/local/lib/include/",
@@ -1046,11 +1045,10 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
-				CLANG_ENABLE_OBJC_ARC = YES;
 				DSTROOT = /tmp/sbjson_ios.dst;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "sbjson-ios/sbjson-ios-Prefix.pch";
-				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
+				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				HEADER_SEARCH_PATHS = "$(TARGET_BUILD_DIR)/include/";
 				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
 				OTHER_LDFLAGS = "-ObjC";
@@ -1067,14 +1065,13 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
-				CLANG_ENABLE_OBJC_ARC = YES;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(SDKROOT)/Developer/Library/Frameworks",
 					"$(DEVELOPER_LIBRARY_DIR)/Frameworks",
 				);
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "sbjson-iosTests/sbjson-iosTests-Prefix.pch";
-				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
+				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				INFOPLIST_FILE = "sbjson-iosTests/sbjson-iosTests-Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
 				OTHER_LDFLAGS = (
@@ -1093,14 +1090,13 @@
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
 				ARCHS = "$(ARCHS_STANDARD_32_BIT)";
-				CLANG_ENABLE_OBJC_ARC = YES;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(SDKROOT)/Developer/Library/Frameworks",
 					"$(DEVELOPER_LIBRARY_DIR)/Frameworks",
 				);
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;
 				GCC_PREFIX_HEADER = "sbjson-iosTests/sbjson-iosTests-Prefix.pch";
-				GCC_VERSION = com.apple.compilers.llvm.clang.1_0;
+				GCC_VERSION = com.apple.compilers.llvmgcc42;
 				INFOPLIST_FILE = "sbjson-iosTests/sbjson-iosTests-Info.plist";
 				IPHONEOS_DEPLOYMENT_TARGET = 4.3;
 				OTHER_LDFLAGS = (