Added markdown parsing for comments so links in comments now appear properly.

Also rewrote part of the HTML rewriting code so it doesn't introduce an additional wrapping element in the output which was added due to a html5lib requirements on input.

python/packages/markdown/extensions/extra.py

@@ -0,0 +1,52 @@
+#!/usr/bin/env python
+"""
+Python-Markdown Extra Extension
+===============================
+
+A compilation of various Python-Markdown extensions that imitates
+[PHP Markdown Extra](http://michelf.com/projects/php-markdown/extra/).
+
+Note that each of the individual extensions still need to be available
+on your PYTHONPATH. This extension simply wraps them all up as a 
+convenience so that only one extension needs to be listed when
+initiating Markdown. See the documentation for each individual
+extension for specifics about that extension.
+
+In the event that one or more of the supported extensions are not 
+available for import, Markdown will issue a warning and simply continue 
+without that extension. 
+
+There may be additional extensions that are distributed with 
+Python-Markdown that are not included here in Extra. Those extensions
+are not part of PHP Markdown Extra, and therefore, not part of
+Python-Markdown Extra. If you really would like Extra to include
+additional extensions, we suggest creating your own clone of Extra
+under a differant name. You could also edit the `extensions` global 
+variable defined below, but be aware that such changes may be lost 
+when you upgrade to any future version of Python-Markdown.
+
+"""
+
+import markdown
+
+extensions = ['smart_strong',
+              'fenced_code',
+              'footnotes',
+              'attr_list',
+              'def_list',
+              'tables',
+              'abbr',
+              ]
+              
+
+class ExtraExtension(markdown.Extension):
+    """ Add various extensions to Markdown class."""
+
+    def extendMarkdown(self, md, md_globals):
+        """ Register extension instances. """
+        md.registerExtensions(extensions, self.config)
+        # Turn on processing of markdown text within raw html
+        md.preprocessors['html_block'].markdown_in_raw = True
+
+def makeExtension(configs={}):
+    return ExtraExtension(configs=dict(configs))