add old yii-ext twig renderer's function into this. and as per yii2's view system changed so for now add simple directory of file based file loader for twig
add old yii-ext twig renderer's function into this. and as per yii2's view system changed so for now add simple directory of file based file loader for twig
minor typos
fixes code style.
Fixes #1609: Adjusted code style, added some docs