History of router 3 changes

In crates/oxy-server/src/lib.rs, lines 182–194 on cdb5beba7f05e5b9ca2674080d40370d77d9f15712620c2cac2942c0bd3cc8e4. 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 182,194:crates/oxy-server/src/lib.rs.