Enable markdown interpretation with code highlight for review.body_top in review_detail.html
Add rich_text db evolution script, and render markdown only is rich_text
Use pre for non-rich_text reviews in template
Add .rich-text to rich_text enabled review's body_top div
Reorganize views.py import
Remove TODO comment
Fix E128 indentation error
Add rich_text field to models.py and the evolution script
Remove markdown render in views.py
Add marked and google-code-prettify to static/lib/js
Add richtext.html as js template which import richtext rendering required js libs
Add rich-text render process into .ready()
Use PIPELINE to import js and css. Move prettify.css to lib/css
Use document.write() to write rendered text directly on loading
Move evolution of FileAttachmentComment to seperate evolution script