The `test` command fails with multiple arguments when given a unary operator such as '-e'. Add a function that can test one or more files by looping over all files.
* Use a more sophisticated template for end-to-end testing.
* Not publish integration tests to npm
* Use "commander" for cli argv handling
* Handle different scripts version forms and exits without a name given
* Prepare the commands for testing with a template
* Fix dev "template" path
* Add various features to test
* Test various features separately
* Test language features
* Comment unused e2e.sh lines
* Add "development" tests
* Test environment variables
* Test webpack plugins
* Replace kitchensink README
* Switch integration tests from jest to mocha
* Use `fs-extra`
* Use the correct folders
* Do some cleanup
* Print a better message for `--template`
* Test `npm start` with and without https
* Separate fast e2e testing from kitchensink testing
* Hide `--internal-testing-template` (former `--template`) CLI option
