code: function closeTask(taskID) {
  			taskID = parseInt(taskID, 10);
  			var task = this.getTaskByID(taskID);
  
  			if(task) {
  				task.open = false;
  				console.log('closing:');
  
  				return task;
  			}
  			else {
  				return false;
  			}
  
  		}
docs: Set a task as "done" or "closed"
  
  @return {undefined}