Update Xcode project file.

Author: Frederik De Bleser

NodeBox.xcodeproj/project.pbxproj

@@ -451,7 +451,7 @@
 		2A37F4A9FDCFA73011CA2CEA /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0420;
+				LastUpgradeCheck = 0450;
 			};
 			buildConfigurationList = C05733CB08A9546B00998B17 /* Build configuration list for PBXProject "NodeBox" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -636,45 +636,52 @@
 		61DB841110BEABCF003F73B9 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 				PRODUCT_NAME = "Build Distribution";
 			};
 			name = Debug;
 		};
 		61DB841210BEABCF003F73B9 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 				PRODUCT_NAME = "Build Distribution";
 			};
 			name = Release;
 		};
 		61EF506210BC26D1006DEF6C /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 			};
 			name = Debug;
 		};
 		61EF506310BC26D1006DEF6C /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 			};
 			name = Release;
 		};
 		61FFC03910BAD90D009AF371 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 			};
 			name = Debug;
 		};
 		61FFC03A10BAD90D009AF371 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				COMBINE_HIDPI_IMAGES = YES;
 			};
 			name = Release;
 		};
 		C05733C808A9546B00998B17 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				COMBINE_HIDPI_IMAGES = YES;
 				COPY_PHASE_STRIP = NO;
 				GCC_DYNAMIC_NO_PIC = NO;
 				GCC_MODEL_TUNING = G5;
@@ -693,6 +700,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				COMBINE_HIDPI_IMAGES = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				GCC_MODEL_TUNING = G5;
 				GCC_PRECOMPILE_PREFIX_HEADER = YES;