As you may already know from the git commits, feng is getting some new features added and some code is being reshaped in order to be easier to understand. Right now we didn't do much with the new lighttpd based configuration beside adding support for listening to an arbitrary number of sockets and other minor changes, before starting to push more interesting stuff we'd like to receive more feedback and test it a bit more.
Right now we are trying to update the documentation before the release to not leave you with inconsistent docs, if you spot anything wrong or that sounds strange, please tell us.