Windows Azure Monitoring Services Library (Preview) + .NET 4.0 Support

- Adds Windows Azure Monitoring Services Libraries (Preview)
  - Alerts
  - Autoscale
  - Metrics

- Adds .NET Framework 4.0 builds to the standard WAML (Windows Azure Management Libraries) NuGet packages
- Moves the Microsoft.WindowsAzure.Configuration component into the `libraries` folder to utilize the same build system
- Increments NuGet package versions for updated libraries that add .NET 4.0

These components make up the new Microsoft.WindowsAzure.Management.Monitoring NuGet package, part of the Windows Azure Management Libraries.

Provides Windows Azure Monitoring Services operations including a unified API to retrieve and configure monitoring metrics, alerts, and autoscale rules for your Windows Azure services.