Implemented.

"Also make the INTEGER_FORMAT symbol be able to convert input already passed to integer_format back to a raw integer, so it can be re-processed (as often templates are often passed things having already been processed in a default way)."

Instead I just made sure any case of integer_format being passed to a template also had an strval version.

I've gone through all the integer_format calls in the code and made sure they use the new display method where appropriate.