* migrate urfave/ci v1 -> v2 * refactor cli (format flag) * log error if agent can not listen on port 3000 close #452
Fix various typos found via `codespell -q 3 -S vendor -L pullrequest,pullrequests`
- move cli files from `cli/drone` to `cli/` - move cli main to `cmd/cli/main.go` to match agent and server - use version from `version/version.go` to match agent and server