add mochiweb_request:serve_file/2
add mochiweb_request:serve_file/2

git-svn-id: 873206019493e617559b0c84a00ebf9b834e1e55@4 583d1f64-3c3e-0410-8459-0f15fcd77d59

asceth/mochiweb,toddlipcon/mochiweb,abhay/mochiweb.old,davidw/mochiweb,clones/mochiweb,mrkurt/mochiweb