Automate the QA:Testcase_Anaconda_help.
    
    This PR automates the mentioned testcase to test that Help can be
    displayed in Anaconda during the installation. It navigates through
    the available Help screens and if it can see it, it finishes.
    
    This test runs after `install_default_upload` to override the
    installation defaults defined for all primary tests.
    
    Delete a duplicated needle.
    
    Reformat list extensions to make it nicer.
    
    Get rid of wrong export and an empty line.
    
    Delete empty line.
    
    Use _boot_to_anaconda for booting and move subroutine accordingly.
    
    Add variable to templates.fif.json
    
    Delete trailing whitespace.
    
    Fix calling the pretest.
    
    Move help checking to another place.