Clean up redis store

cache headers for static assets

make redis connection into a separate method

tests

var winston = require('winston');

var hashlib = require('hashlib');

// TODO move to a different method (conn)

var RedisDocumentStore = function(options) {

  if (!RedisDocumentStore.client) {

    RedisDocumentStore.connect(options);

  }

};

// Create a connection according to config

RedisDocumentStore.connect = function(options) {

  var host = options.host || '127.0.0.1';

  var port = options.port || 6379;

  var index = options.db || 0;

      winston.info('connected to redis on ' + host + ':' + port + '/' + index);

    }

  });

  }

};

// Save file in a key