修改迁移历史记录
yii migrate/mark 150101_185401 # using timestamp to specify the migration
yii migrate/mark "2015-01-01 18:54:01" # using a string that can be parsed by strtotime()
yii migrate/mark m150101_185401_create_news_table # using full name
yii migrate/mark 1392853618 # using UNIX timestamp