Erb not preprocessed

[mkamensky]

Erb in my scss.erb files is not processed. The reason seems to be that the file type is not detected correctly, due to the order that extensions appear here. The problem is resolved if I move the extensions involving erb higher, but maybe a better solution is to check if the file name ends with the extension, rather than includes it?

[mkamensky]

I see there is a pull request to do this, but with no issue attached