History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 373–381 on f0406c3b40ed1bbaa0b43a820106cf033f1c636d9805b06882d4bb0f2a8406d2. 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 373,381:crates/oxy-server/src/lib.rs.