Updated all project settings to be XCode 4.3 compliant

- Switches from GBD to LLDB for debugging

gameplay-encoder/gameplay-encoder.xcodeproj/project.pbxproj

@@ -349,7 +349,7 @@
 		42475CDD147208A000610A6A /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0420;
+				LastUpgradeCheck = 0430;
 			};
 			buildConfigurationList = 42475CE0147208A000610A6A /* Build configuration list for PBXProject "gameplay-encoder" */;
 			compatibilityVersion = "Xcode 3.2";

gameplay/gameplay.xcodeproj/project.pbxproj

@@ -1185,7 +1185,7 @@
 		4234D98C14686BB6003031B3 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0420;
+				LastUpgradeCheck = 0430;
 			};
 			buildConfigurationList = 4234D98F14686BB6003031B3 /* Build configuration list for PBXProject "gameplay" */;
 			compatibilityVersion = "Xcode 3.2";