Upgrade to TypeScript 1.0.1

This changes updates the download URL to the TypeScript 1.0.1 package, and also renames the package to include only Visual Studio 2012 in the name and description (TypeScript is now bundled with update 2013.2 instead of as a separate package).

I had sent you an email pointing you to a pull request I made in somebody else's repository. D'oh, sorry about that.