minor addition to #148
minor addition to #148

--HG--
branch : bootstrap-2.0.2

66ru/yii-bootstrap,theblacksmith/yii-bootstrap,66ru/yii-bootstrap,theblacksmith/yii-bootstrap,motin/yii-bootstrap,theblacksmith/yii-bootstrap,theblacksmith/yii-bootstrap,motin/yii-bootstrap,motin/yii-bootstrap,66ru/yii-bootstrap