'Property. Returns the text of the license type for the course
("All Rights Reserved" or "Creative Commons")'

@property
def course_license(self):

    license_types_css = u'.license    ul.license-types    li.license-type'
    self.wait_for_element_presence(license_types_css, u'license    type    buttons    are    present')
    selected = self.q(css=(license_types_css + u'    button.is-selected'))
    if selected.is_present():
        return selected.text[0]
    license_text = self.q(css=u'.license    span.license-text')
    if license_text.is_present():
        return license_text.text[0]
    return None
