History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 339–347 on 86394a7503b4c6633b8e2dd951615b01771fc27fc9fc1fcc79d92b92c00ba1b5. 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.