Better webpack loader

[newtack]

We are using the loader below for webpack, it may be useful to mention it in the Webpack section:

https://github.com/s-panferov/awesome-typescript-loader

[DanielRosenwasser]

When I first wrote the guide, we discussed this and @s-panferov modestly suggested that ts-loader was a good default, but I agree. Recently I have seen a good number of people who've benefited from awesome-typescript-loader.

[s-panferov]

@newtack @DanielRosenwasser I still don't think that awesome-typescript-loader is a best default, but I don't mind about mentioning it as a possible choice.

[DanielRosenwasser]

Right, I should clarify that I'll mention that tip around that part of the tutorial or at the beginning. ts-loader is going to stay as the default.