Flip urlize and linebreaks conversion for plain rendering for cleaner rendering

Django's urlize is somewhat wired: e.g 'Foo http://bar.com' will result in
`<p>Foo <a href="http://bar.com%3C/p%3E">http://bar.com</p></a>`
for `urlize(linebreaks(escape(text)))`. Flipping `urlize` and `linebreaks` results in the expected output with clean line breaks / paragraphs:
`<p>Foo <a href="http://bar.com">http://bar.com</a></p>`