add mkdir, rmdir test casee

change uv_fs_read cb signature: use same callback signature as uv_read_cb

add pipe_bind test case

prevent SEGV when throws Fatal error on callback context.

add udp test case

enable irc notification (travis)

add tcp bind test

remove unused variable

do not initialize ares on startup.

update readme [ci skip]

bump down uv ext version. php-uv is very experimental

change function signature: uv_udp_recv, uv_udp_recv_start

change function signature. (respects native function signature)

add http server sample

add more error information : uv_shutdown

add error handling

update config.w32: http-parser support

add http parser support:

currently, php-uv has socket handling problem. (https://github.com/chobie/php-uv/issues/5)
if I don't support httpparser. hard to explain it.

for now, fix uv_spawn test case

for now, force remove resource when calling uv_close

fix request example

add pending parameter.

PHP_UV_DEBUG should be 0

for now, add uv_read2

fix gethostbyname_cb test