Get-AzureServiceExtensionImage impl.
Merge branch 'dev' of https://github.com/huangpf/azure-sdk-tools into extensions
Remove unused references
Update AutoMapper nuget version
Update libraries in solution
Update Configuration Manager NuGet
Merge branch 'dev' of https://github.com/huangpf/azure-sdk-tools into extensions
Merge branch 'azurert' of https://github.com/huangpf/azure-sdk-tools into extensions
Merge branch 'extensions' of https://github.com/huangpf/azure-sdk-tools into extensions
PGA + ReferenceExtension
VMA extension
Fix nullable type issue for ResourceExtensionParameterValue
Address WAML packages issue
Merge branch 'dev' of https://github.com/WindowsAzure/azure-sdk-tools into extensions

Conflicts:
	WindowsAzurePowershell/src/Commands.ServiceManagement.PlatformImageRepository/Commands.ServiceManagement.PlatformImageRepository.csproj
	WindowsAzurePowershell/src/Commands.ServiceManagement.Preview/Commands.ServiceManagement.Preview.csproj
	WindowsAzurePowershell/src/Commands.ServiceManagement/Commands.ServiceManagement.csproj
	WindowsAzurePowershell/src/Commands.Test.Utilities/packages.config
	WindowsAzurePowershell/src/Commands.Test/packages.config
	WindowsAzurePowershell/src/Commands.Utilities/packages.config
DisableGuestAgent option for Add-AzureProvisioningConfig cmdlet
WAML versions
Merge branch 'extensions' of https://github.com/huangpf/azure-sdk-tools into extensions

Conflicts:
	WindowsAzurePowershell/src/Commands.Test.Utilities/packages.config
	WindowsAzurePowershell/src/Commands.Test/packages.config
	WindowsAzurePowershell/src/Commands.Utilities/packages.config
Nuget Versions
Refactoring
package update