* add router service polyfill
* add refresh command
* move async code into ember-concurrency task and implement refresh that way
* use ember-concurrency derived state to show a loading spinner when the task is running
* scroll after appending to log too
* adding columnify and ember-cli-cjs-transform
* add yargs-parser
* remove vendored yargs-parser tokenizer and use cjs transform to import it from actual yargs-parser
* add clear command that clears the log, but maintains history
* make codemirror have no gutter and be auto-height when rendered in the console output log
* add fullscreen command and hook up fullscreen toggle button
* hook up copy button
