Updated travis.yml commented HHVM
Updated travis.yml commented HHVM

Somefive/Athena,mobilejazz/yii2-mj-cms-example,jgege/MonApp,subdee/myportugal,tibrus/yii2-app-advanced,yiisoft/yii2-app-advanced,yiijan/yii2-app-advanced,vitezmiklos/test,Somefive/Athena,dmitry-kulikov/yii2-app-advanced,dixonsatit/yii2-dixon-starter,yiijan/yii2-app-advanced,cophiel/YII2-Learning,dixonsatit/yii2-dixon-starter,githubjeka/yii2-app-advanced,githubjeka/yii2-app-advanced,nikbas/yii2-app-advanced,urmaul/yii2-app-advanced-mongodb,nikbas/yii2-app-advanced,cophiel/YII2-Learning,AnTAVR/yii2-app-advanced-ru,subdee/myportugal,AnTAVR/yii2-app-advanced-ru,yiisoft/yii2-app-advanced,mobilejazz/yii2-mj-cms-example,jgege/MonApp,erycamel/yii2-app-advanced,AnTAVR/yii2-app-advanced-ru,dmitry-kulikov/yii2-app-advanced,erycamel/yii2-app-advanced