code: function getReleaseConfig() {
    var configFileName = path.join(__dirname, '..', 'package.json');
  
    return fs.readFileAsync(configFileName, 'utf-8')
      .then(function (data) {
        var conf;
        try {
          conf = JSON.parse(data);
          if (conf && conf.thaliInstall) {
            return conf.thaliInstall;
          }
          return Promise.reject('Configuration error!');
        }
        catch (err) {
          return Promise.reject(new Error(err));
        }
      });
  }
docs: This method is used to retrieve the release configuration data
  stored in the releaseConfig.json.
  
  @returns {Promise} Returns release config