Luv 0.5.7

Additions

• Upgrade vendored libuv to 1.41.0 (#100).
• Expose uv_pipe as Luv.Pipe.pipe (#100).
• Expose uv_socketpair as Luv.TCP.socketpair (#100).
• Expose UV_PRIORITY_* constants in module Luv.Resource.Priority (#98).
• Install headers for the vendored libuv in the opam switch (#83).
• Ability to link with a system or other external libuv (#94, Andy Li).
• Ability to link against older versions of libuv than the vendored one; the minimum libuv version is 1.3.0, though several functions will return ENOSYS; see notes in README (#97).

Bugs fixed

• SOMAXCONN might not fit into an OCaml (31-bit) integer on 32-bit platforms (#85, reported by Aleksandr Kuzmenko).
• During Luv.Process.spawn, the OCaml GC was collecting uv_spawn arguments before they were used (#87, Bryan Phelps).
• Write outside bounds of data structure during Luv.Thread_pool.queue_c_work (#93, Jerry James).