Check the "Remember me" when logging in

[johnbillion]

Expected behaviour

When using the iAmLoggedInAsRole( ... ) step the user should remain logged in.

Current behaviour

We're seeing some instances where the user's session expires part way through a feature, causing it to fail.

Context

This appears to be caused by the fact the "Remember me" box isn't checked when logging in the user.

Your environment

Include as many relevant details about the environment you experienced the bug in:

• WordHat version used: 3.1.2
• Environment name and version: PHP 7.2 on Nginx
• Server operating system type and version: Chassis
• Type of Behat browser used (e.g. Selenium, headless Chrome, etc): selenium2

[paulgibbs]

Done in #247

[paulgibbs]

This is going into 3.2.0