History of router 2 changes

In crates/oxy-server/src/lib.rs, lines 162–172 on 5259a3af8ee6ee8ce93d04a51f1402efb46b46d95363320a7ad99f05df0eabff. 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 162,172:crates/oxy-server/src/lib.rs.