pipe_of_body should not close any handles

In keep alive mode connection is persistent. The closing logic is moved
to after the requests pipe has been cleared.

Fixes #105
update .merlin

add async_ssl, stringext. remove re.str
Make Async SSL optional via optcomp (not plumbed through to build system yet)

This is unfortunately rather hard to do via OASIS, due to the tangling up
of OASIS, ocamlbuild, ocamlfind and optcomp...
Merge pull request #107 from rgrinberg/master

update .merlin
Merge pull request #106 from rgrinberg/body_post_bug

pipe_of_body should not close any handles
Add resolve_local_file in Cohttp_lwt.Server (same as Cohttp_async.Server)
Create a same SimpleHTTPServer with Cohttp/Lwt
Async: Adapt to external Conduit library API (less Uri-specific now)
lwt: move the connection setup logic out to the Conduit library
Adapt to latest Conduit API
bump the conduit branch to 0.11.0
Sync CHANGES
Add a local opam file for easier pinning
correct port type in Lt
disable Nettests by default
rewrite Lwt test to be 4.00.1 compatible
mention conduit in CHANGES
Merge pull request #112 from avsm/use-uri-conduit

Switch to using an external Conduit library for connection handling
tests: restore async non-ssl tests
Fix @rgrinberg's name in the authors list. Sorry!