History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 339–347 on e1dc6d6aad4f8c6807e12dc4d03c3af17bdadb17e31533b17745b3c31f81e829. Every change that wrote or deleted one of these lines, or deleted a line from between them. Exact, because each line keeps its identity across edits; edits elsewhere in the file are not here. Also: oxy log -L 339,347:crates/oxy-server/src/lib.rs.