Generate one HTML page for each tag, each containing all posts that
		match that tag.

def generate_tags(self):
		"""
		Generate one HTML page for each tag, each containing all posts that
		match that tag.
		"""
		for tag in self.tags:
			posts = self.get_posts(tag=tag, private=True)
			self.generate_page(['tags', tag.slug],
				template='archive.html.jinja', posts=posts)