crypto: add TLS 1.1 and 1.2 to secureProtocol list
src: move ReqWrap::data_ to FSReqWrap

FSReqWrap is the only ReqWrap child class that uses the data_ field so
move it out of ReqWrap and into FSReqWrap.
src: clean up FSReqWrap

Move the 'free FSReqWrap data?' logic into the class itself.
wip
wip
wip
test fix
http: don't send trailers to destroyed socket
http: Handle expect:100-continue properly
http: writeHead sends header immediately, and don't write to closed sockets
http: more moving around of things
lint