History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 379–387 on 614f55e14eeed483b6f249f380b75acdcaf0953aafb7e9f2aa2762a0b60e45e5. 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 379,387:crates/oxy-server/src/lib.rs.