itier v0.1.11

#About

itier-client is a client library for itier

Install

	npm install itier

Usage

	var itier	= require('itier-client').createClient({
            'appname'   : 'username',
            'apppass'   : 'password',
    });

	itier.connect('127.0.0.1', 9999).connect('127.0.0.2');
    itier.query('SELECT * FROM table WHERE c1 = :c', {
            'c' : 1211
    }, function(error, data, header, profile) {
        if (error) {
            throw new Error(error);
        }

		/**
		  * @write to cache
		  */
		// cache.write(key, data, header.expire + now);
    });

TODO

• Query options support, such as "usecache" and "debug" done;
• Get itier service status and hosts list from config-server;