use lang-map for detecting by file extension

[derhuerst]

lang-map offers support for many languages. The mapping between file extension and the name of the language should possibly be curated only once.

[nknapp]

Hi and thank you for your feedback. You are probably right. I am not sure anymore, but I think I just took the list from the groc project and parsed it for this project.
At the moment, however I don't have the time to maintain this project. I also think that it does not really solve the problem I created it for (I actually wanted to create a apidoc-parser that could be used for different languages, but I've come to the conclusion that it should rather be done for each language individually.)

If you are interested in implementing this feature, I will give you push-access to the repository. I may even add you as collaborateur on npmjs.com.