History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 33be24095b4bf535d1692e1f0fc7beac756c7402db5c3a12c3bad303e1a600a5. 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 13,32:src/cli/proposal.rs.