Move activity creation to data generators. Only fixing those
tests failing due to removing usemodchooser preference.

Simey Lameze authored Mar 15, 2017 and Damyon Wiese committed Apr 03, 2017

Also remove few more unnecessary steps that redirects behat to
site home page to actually get to the course.

Part of MDL-55611 epic.

Simey Lameze authored Mar 14, 2017 and Damyon Wiese committed Apr 03, 2017

Part of MDL-55611 epic.

asd.com is a valid domain, we should use reserved domain names for testing