Adjust response timing

Add product picture

Add product picture

Add product picture

Add new task type DoAfter

This task type allows the user to schedule tasks that have to be
done after a certain date - the opposite of a deadline.

Improve code quality

Code quality is important as it allows for error-resistant coding,
and a standardised style that is shared throughout all the
contributors to a project.

Improve code quality

Code quality is important as it allows for error-resistant coding,
and a standardised style that is shared throughout all the
contributors to a project.

Add assertions

Assertions allow us to verify that the code is running as intended,
by checking that certain variables are unchanged throughout execution.

Merge branch 'branch-A-Checkstyle'

Deconflict more files