Windows Azure automated deployment

Resolves #409.

This patch implements automated provisioning on the Windows Azure platform and automated deployment of the benchmark suite on newly provisioned hosts.

See documentation at:

https://github.com/fernandoacorreia/FrameworkBenchmarks/blob/azure-deployment/toolset/deployment/azure/README.md

https://github.com/fernandoacorreia/FrameworkBenchmarks/blob/azure-deployment/toolset/deployment/common/README.md

Tested on Windows and Ubuntu, but not on OS X.

Setup on Windows still requires a few manual steps. Issue #464 was created to automate those steps.