Updated Xcode project for building for 10.5.

Author: liamlacey

Builds/MacOSX/AlphaLive.xcodeproj/project.pbxproj

@@ -3701,6 +3701,7 @@
 				GCC_WARN_NON_VIRTUAL_DESTRUCTOR = YES;
 				GCC_WARN_TYPECHECK_CALLS_TO_PRINTF = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.5;
 				PRODUCT_NAME = AlphaLive;
 				SDKROOT = macosx10.5;
 				WARNING_CFLAGS = "-Wreorder";
@@ -3723,6 +3724,7 @@
 				GCC_WARN_NON_VIRTUAL_DESTRUCTOR = YES;
 				GCC_WARN_TYPECHECK_CALLS_TO_PRINTF = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
+				MACOSX_DEPLOYMENT_TARGET = 10.5;
 				PRODUCT_NAME = AlphaLive;
 				SDKROOT = macosx10.5;
 				WARNING_CFLAGS = "-Wreorder";