History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 390–398 on f05b84d1ad2d93d2027bc1e09fe393984c6a32e9b2d4016a11b6858f873b8b3c. 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 390,398:crates/oxy-server/src/lib.rs.