Lwt 2.4.0

• Reimplement Lwt_stream:
  • Much simpler and more efficient.
  • Do not use Weak.
  • Add bounded push streams.
• Add Lwt.async.
• Add Lwt_preemptive.run_in_main.
• Implement Lwt_unix.get_credentials on MacOS X/OpenBSD.
• Ensure that on_cancel functions are executed first.
• Better implementation of Lwt.cancel with more tests.
• Simplify the API for Unix jobs.
• Better handling of the master lock in libev stubs.
• Windows fixes/updates:
  • Pass -lws2_32 instead of ws2_32.lib if building with MinGW.
  • Fix a bug causing Lwt_unix.read/write to block when a socket is not readable/writable.
  • Port Lwt_process and Lwt_unix.system to Windows.
• Compatibility with OCaml 4.00:
  • Add O_SHARE_DELETE to Lwt_unix.open_flag.
  • Add -package compiler-libs.toplevel for files using Toploop.
• Do not use module Sys for signal handling to avoid OCaml code to be called in a C thread.
• Fix Lwt_unix.wrap_syscall: try instead of Lwt.catch.
• Fix a dead-lock between Lwt_unix_send_notification and Lwt_unix_recv_notifications.
• Fix #277: add a function to return the Ssl.socket of a Lwt_ssl.socket.
• Fix problems with C libraries detection/linking.

Lwt 2.3.2

• Add location informations in logs:
  • Allow loggers to get the current location through local storage.
  • Pass current location to logging functions.
  • Pass the current location with the syntax extension.
• Add Lwt.on_termination.
• Add Lwt_unix.reinstall_signal_handler.
• Add Lwt_io.flush_all.
• Add assert_lwt keyword to the syntax extension.
• Add Lwt.wrap.
• Add Lwt_glib.iter and Lwt_glib.wakeup.
• OCaml 3.13 ready.
• Allow to compile without libev support.
• Fix bugs in Lwt_io.
• Better handling of forks.
• Fix many problems on Windows.