Better internal documentation hosting. I want something that can pull in documentation generated from code (from tools like godoc or javadoc), README files che

Better internal documentation hosting. I want something that can pull in documentation generated from code (from tools like godoc or javadoc), README files checked into code, plus other more wiki style documentation. With all this documentation in one place, I want it to be smart about helping me deal with dead links and suggest pages that might need update when code updates. For example, say a wiki page references running a command with a certain flag. If I check in a change removing that flag from that command, the wiki should let me know that the page might need to be updated. Ideally, this wiki would also have a stack-overflow -like Q&A feature to reduce the time spent helping other team members.