backend update from Raze

* moving large allocations off the stack
* use proper printf formatters for size_t and ptrdiff_t.
* adding some missing 'noexcept'.

src/common/utility/zstring.h

@@ -125,7 +125,7 @@ public:
 
 	// Copy constructors
 	FString (const FString &other) { AttachToOther (other); }
-	FString (FString &&other) : Chars(other.Chars) { other.ResetToNull(); }
+	FString (FString &&other) noexcept : Chars(other.Chars) { other.ResetToNull(); }
 	FString (const char *copyStr);
 	FString (const char *copyStr, size_t copyLen);
 	FString (char oneChar);