sync http request powered by urllib and spawnSync.
Notice: Only support node v0.11.13+
$ npm install urllib-sync --save
var request = require('urllib-sync').request; var res = request('https://github.com'); // res should have status, data, headers
more options please check out urllib. But unfortunately,
urllib-sync do not support streams and agents now.
options.writeFile is present, the result of request will write into this file directly.