2009-01-17  Claude Paroz  <claude@2xlibre.net>

	* media/css/difflib.css: Specific CSS for diff template.
	* templates/vertimus/vertimus_detail.html: Add link to diff template just
	under po files.
	* templates/vertimus/vertimus_diff.html: Show side-by-side diff between
	two po files.
	* vertimus/models.py: 3 utility methods added for diff functionality.
	* vertimus/urls.py: Add URL for diff view.
	* vertimus/views.py: Add vertimus_diff view.
	Preliminary work for #566060.

svn path=/trunk/; revision=1357