Log Message:
Version 1.13.0
* Now working on version 1.12.1
* unix: avoid segfault in uv_get_process_title
* build: add a comma to uv.gyp
* win: restore file pos after positional read/write
* unix,stream: return error on closed handle passing
* unix,benchmark: use fd instead of FILE* after fork
* zos: avoid compiler warnings
* win,pipe: race condition canceling readfile thread
* sunos: filter out non-IPv4/IPv6 interfaces
* sunos: fix cmpxchgi and cmpxchgl type error
* unix: reset signal disposition before execve()
* unix: reset signal mask before execve()
* unix: fix POLLIN assertion on server read
* zos: use stckf builtin for high-res timer
* win,udp: implements uv_udp_try_send
* win,udp: return UV_EINVAL instead of aborting
* freebsd: replace kvm with sysctl
* aix: fix un-initialized pointer field in fs handle
* win,build: support building with VS2017
* doc: add instructions for building on Windows
* doc: format README