Clean up redis test to exit properly

var RedisDocumentStore = require('../lib/redis_document_store');

var winston = require('winston');

winston.remove(winston.transports.Console);

describe('redis_document_store', function() {

  /* reconnect to redis on each test */

  afterEach(function() {

    if (RedisDocumentStore.client) {

      RedisDocumentStore.client.quit();

      RedisDocumentStore.client = false;

    }

  });

  describe('set', function() {

    it('should be able to set a key and have an expiration set', function() {