I would argue that Github has many if not all of those features.

Wiki - check

Ticketing & Bug Tracking - Github has 'issues'

Embedded documentation - include a README file in your repo, and Github immediately shows that under your project

News/Blog features - Github has pages, and automatically generates RSS feeds for your commits.

I'd argue that Github does all these things better than Fossil (or I) can ever do - they have a whole design team constantly worrying about ease-of-use.