History of router 5 changes

In crates/oxy-server/src/lib.rs, lines 373–381 on 01a47cd7f0c8deefd0326b8e498cf2c2ad6422e2dd7da1d139a73c27fe968ef9. 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.