'Method called when we auto add children to this plugin via
default_plugins/<plugin>/children in CMS_PLACEHOLDER_CONF.
Some specific plugins may have some special stuff to do when we add
children to them. ie : TextPlugin must update its content to add HTML
tags to be able to see his children in WYSIWYG.'

def notify_on_autoadd_children(self, request, conf, children):

    pass
