Lwt_log: get backtrace early to overcome exns in Printexc.to_string.
fixes to README.

Note that I bumped the OCaml minimum version up to 3.12.1, as that's
mostly what we test with these days.  Also replaced GODI with OPAM
since the former is now offline.
Fix my fixes to the README, via @hcarty
Merge pull request #49 from avsm/README-fixes

fixes to README.
Fix ocaml/camlp4#19
Lwt_ssl: expand API to allow setting socket options with Ssl functions.
Document Lwt_ssl.ssl_perform_handshake and ssl_accept_handshake.
Merge pull request #50 from mfp/ssl-uninitialized-socket

Minor Lwt_ssl API addition to support Ssl functions used to set socket options before handshake
Merge pull request #51 from mfp/preserve-backtraces

Lwt_log: get backtrace early to overcome exns in Printexc.to_string.
version 2.4.5
use sys_exit when Unix.execv fail

User have reported problems related to exit hooks.
Fixes to discover.ml: calling the linker with compiler flags is bad and causes
failures under Windows.
Merge pull request #55 from XiphosSystemsCorp/winfix

Fixes to discover.ml: calling the linker with compiler flags is bad and ...
Remove use of @@ in discover.ml - that shorthand is not available in older OCaml versions.
Merge pull request #57 from XiphosSystemsCorp/winfix

Remove use of @@ in discover.ml - that shorthand is not available in older OCaml versions.
Don't throw an exception in the notification handler if we're shutting down

OCaml calls WSACleanup in an at_exit handler. If we try to send a
notification after that we get an error and throw an exception in the
signal handler. This causes a segfault.

Fixes #59.
Initialise notification byte

Avoids memory checker warning (drmemory) about reading an uninitialised
byte.
Merge pull request #61 from talex5/win-shutdown-fix

Don't throw an exception in the notification handler if we're shutting down
fix #64
Introduce .jenkins.sh