Use DWARF symbols for Release build

This should ship binaries with debugging symbols in them.
I'm not sure if there's a negative side effect somewhere,
but this should make parsing the crash logs a lot easier :)

GitX.xcodeproj/project.pbxproj

@@ -916,7 +916,7 @@
 		26FC0A860875C7B200E6366F /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
-				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
+				DEBUG_INFORMATION_FORMAT = dwarf;
 				FRAMEWORK_SEARCH_PATHS = (
 					"$(inherited)",
 					"\"$(SRCROOT)\"",