Adds -Async extension methods to enable use of the convenient C#/VB await keywords when calling into Azure storage.

This project is available as the Microsoft.WindowsAzure.StorageClient.Async NuGet package.

The API that Windows Azure Storage exposes is large, and this project is currently under passive development (API is added on an as-needed basis). Please consider forking this project on GitHub to add whatever -Async methods that are missing that you want, and sending a pull request to get your improvements added to the original project.