I18N, Commenter and minor fixes

Hi,

On september last year I started a project exactly like this one. However, I had to stop working on it. Today I wanted to continue, but noticed your project and saw that your grammar seems more complete than mine, but you're missing a lot other functionality.

So I ported some of the classes I have implemented and did minor fixes in your code.

Unless you want to work on this alone, maybe we can work together to make this plugin happen :smile: