Updated JSON.NET to version 6.0.4
Upgraded Spec.TestSupport and HttpRecorder
Updated mock tests
Merge pull request #2798 from stankovski/json604

Updated JSON.NET to version 6.0.4
Merge branch 'dev' of https://github.com/Azure/azure-sdk-tools into dev
Merge branch 'dev' of https://github.com/AzureRT/azure-sdk-tools into dev
Merge branch 'dev' of https://github.com/AzureRT/azure-sdk-tools into dev

Conflicts:
	src/Common/Commands.Common.Test/Commands.Common.Test.csproj
	src/Common/Commands.Common.Test/packages.config
	src/Common/Commands.ScenarioTest/Commands.ScenarioTest.csproj
	src/Common/Commands.ScenarioTest/packages.config
	src/ServiceManagement/Compute/Commands.ServiceManagement.PlatformImageRepository/Commands.ServiceManagement.PlatformImageRepository.csproj
	src/ServiceManagement/Compute/Commands.ServiceManagement.PlatformImageRepository/packages.config
	src/ServiceManagement/Compute/Commands.ServiceManagement.Preview/Commands.ServiceManagement.Preview.csproj
	src/ServiceManagement/Compute/Commands.ServiceManagement.Preview/packages.config
	src/ServiceManagement/Compute/Commands.ServiceManagement.Test/Commands.ServiceManagement.Test.csproj
	src/ServiceManagement/Compute/Commands.ServiceManagement.Test/packages.config
	src/ServiceManagement/Compute/Commands.ServiceManagement/Commands.ServiceManagement.csproj
	src/ServiceManagement/Compute/Commands.ServiceManagement/packages.config
	src/ServiceManagement/Services/Commands.Test.Utilities/Commands.Test.Utilities.csproj
	src/ServiceManagement/Services/Commands.Test.Utilities/packages.config
	src/ServiceManagement/Services/Commands.Test/Commands.Test.csproj
	src/ServiceManagement/Services/Commands.Test/packages.config
	src/ServiceManagement/Services/Commands.Utilities/Commands.Utilities.csproj
	src/ServiceManagement/Services/Commands.Utilities/packages.config
	src/ServiceManagement/Services/Commands/Commands.csproj
	src/ServiceManagement/Services/Commands/packages.config