History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on b260109d27c59192f0a0d639fa8bf130c2b884394b8371225ffceaecb912d262. 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.