Controller::createUrl changed to Url::toRoute

refering to https://github.com/yiisoft/yii2/pull/2676

from yii2 removed:
yii\web\Controller::createUrl
yii\web\Controller::createAbsoluteUrl

now use:
yii\helpers\Url::toRoute
Merge pull request #1 from degger80/master

Controller::createUrl changed to Url::toRoute