Compilation Context Expansion

Add http://stackoverflow.com/a/37106180/390330 here : https://basarat.gitbooks.io/typescript/content/docs/project/compilation-context.html :rose:

Also mention `include` is a glob and patterns for it `src/**/*` which does automatic `.ts`/`.js` selection by the compiler :)

Open the Compilation Context page at the linked GitBook URL and review its current explanation. Add the Stack Overflow reference and document that `include` accepts globs such as `src/**/*`, with the compiler selecting `.ts` and `.js` files automatically; done means both points are clearly included on that page.

Written by the indexing model from the issue text.