Discussion: implement line separator service

I found this feature (turned off by default) in C# editor:

![image](https://cloud.githubusercontent.com/assets/873919/21484049/8663ecd2-cb9d-11e6-97ff-9db7e7f7f288.png)

I'm not sure it's worth implementing though. Ideas?