Fix bug with missing meats!

These were actually being sent down to the browser, but we were skipping
over them because DOM APIs are awful. getElementsByTagName actually
returns a list that stays up to date through DOM modifications, meaning
that when we inserted new meats (and removed them from our holding div),
they got removed from the list. Since we were iterating over the list in
a for loop, this had the result of only rendering every OTHER meat. Oops.