'Replace common tags with just text so we don\'t have any crazy
formatting issues so replace <br>, <i>, <strong>, etc....
With whatever text is inside them.
code : http://lxml.de/api/lxml.etree-module.html#strip_tags'

def replace_with_text(self):

    self.parser.stripTags(self.get_top_node(), 'b', 'strong', 'i', 'br', 'sup')
