Log Message:
libuv: updated to 1.30.0

Version 1.30.0
* darwin: fall back to F_BARRIERFSYNC
* darwin: add 32 bit close$NOCANCEL implementation
* build, core, unix: add support for Haiku
* darwin,linux: more conservative minimum stack size
* threadpool: increase UV_THREADPOOL_SIZE limit
* unix: return actual error from `uv_try_write()`
* darwin: fix build error with macos 10.10
* unix: make uv_cwd() report UV_ENOBUFS
* unix: make uv_fs_read() fill all buffers
* test: give hrtime test a custom 10s timeout
* fs: fix uv_fs_copyfile if same src and dst
* build: add cmake option to skip building tests
* doc: add link to nodejs.org
* unix: fix a comment typo in signal.c
* unix: remove redundant cast in process.c
* doc: fix wrong mutex function prototypes