Improve README: introductory explanation and examples of use.
Add 'Troubleshooting' section with details of using --debug option.
Add a note about required configuration values.
Add a link to the source for DrupalTestUser class.
Add a constant for email domain to use for test user accounts.
Provide a more accurate description of (currently) required configuration.
Add getRootUser() method to return a representation of the user with uid 1; add instructions to README.
Use a JSON response from Drush to check if a user doesn't exist instead of an error message.
Add a note about the use of Drush and the --delete-content option when deleting users.
Add ability to store logged in user.
Add a minimal Codeception 2 set-up (with no tests).
Add minimal Travis CI configuration.
Test the result of getRootUser() against configuration.
Add Build status image to README.
Change directory before running composer install.
Run Codeception build step to generate *Tester classes.
Add .editorconfig for files using 2 space indent (.travis.yml).
Ensure the test suite is using the checked out repository at the top level (instead of the Composer-installed version).
Squish commands to remove and symlink module.
Add test for pull request #3 (but mark it as to skip) before I lose it again.