Fixed compile failed.
Addes swoole_server->addprocess
Added swoole_server->addProcess.
Added swoole_async_signal
Update swoole_process.
Close pipe_worker in master process.
clear fd desc
Update async signal
refactor reactor->timeout and reactor->finish.
Update swoole_process::signal
Update swoole_process example
Update async client
Added server->task pipe write bufffer.
Fixed pipe_used is zeror.
Update setBlock function.
Fixed msgqueue segment fault.
fix swoole_async_write() offset bug if file does not exist
Merge pull request #145 from LinkedDestiny/master

fix swoole_async_write() offset bug if file does not exist
Update async task finish will exit.
add web socket