Update README.md
Removing ingest manifest test verification
Merge branch 'dev' of https://github.com/WindowsAzure/azure-sdk-for-media-services.git
Copy from private repo.
Addressing code review feedback.
Removing [Obsolete] from cloud media context constructors.
Merge branch 'dev' of https://github.com/WindowsAzure/azure-sdk-for-media-services into dev