History of api_url 2 changes

In src/cli/proposal.rs, lines 13–32 on 27825564bc16ea9d7fda6599b3029004a155181009b24320fb77e63ec6e7e154. 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.