code: function tell(name, taskInfo) {
    if (swig.tasks[name]) {
      console.log(`Task '${name}' has been overridden by a local installation`.yellow);
    }
  
    swig.tasks[name] = _.extend({
      description: '<unknown>',
      flags: {},
    }, taskInfo);
  }
docs: allows a task to tell swig about itself