Merge pull request #118 from huangpf/dev

AzureRT PR Sprint 36
BUG: Publish-AzurePlatformExtension requires CompanyName after the version header is updated to 2014-06-01
1. Add SupportedOS parameter to Publish-AzurePlatformExtension
2. Fix the piping issue of Set-AzurePlatformExtensionEndpoint and Set-AzurePlatformExtensionLocalResource
3. Add help doc for Publish-AzurePlatformExtension and Set-AzurePlatformExtension
Fix AzureServiceRemoteDesktop test failures
Merge pull request #119 from hyonholee/dev

BUG: Publish-AzurePlatformExtension requires CompanyName after the versi...
Merge branch 'dev' of https://github.com/AzureRT/azure-sdk-tools into lib-fix
fix ExtensionImage's namespace reference