This fix improves the robustness of the behat tests, ensuring that the testsession has actually
been successfully started before the test kicks off. Although it doesn't fix anything that
wasn't previously broken, it makes environment set-up errors a bit easier to figure out.
It looks for a new status comment in the result of testsession, that is also being added to the
module.
- Moved all extension-specific conf into its own configuration namespace
- Described configuration via PHP, and added default values
- Removed boilerplate config from README
- Made screenshot_path optional
- Configurable ajax_timeout settings
Note: The DI system plus the initializer+context combo requires insane amounts of code duplication,
will need to be looked at more closely (very little docs on that level of Behat extension available).
