Enable NuGet packages caching for more reliable AppVeyor builds
Enable NuGet packages caching for more reliable AppVeyor builds

Microsoft/CodeContracts,hubuk/CodeContracts,hubuk/CodeContracts,hubuk/CodeContracts,SergeyTeplyakov/CodeContracts,huoxudong125/CodeContracts,huoxudong125/CodeContracts,ndykman/CodeContracts,huoxudong125/CodeContracts,ndykman/CodeContracts,ndykman/CodeContracts,hubuk/CodeContracts,SergeyTeplyakov/CodeContracts,Microsoft/CodeContracts,huoxudong125/CodeContracts,Microsoft/CodeContracts,SergeyTeplyakov/CodeContracts,Microsoft/CodeContracts,ndykman/CodeContracts,huoxudong125/CodeContracts,huoxudong125/CodeContracts,hubuk/CodeContracts,Microsoft/CodeContracts,ndykman/CodeContracts,SergeyTeplyakov/CodeContracts,SergeyTeplyakov/CodeContracts,ndykman/CodeContracts,huoxudong125/CodeContracts,SergeyTeplyakov/CodeContracts,hubuk/CodeContracts,SergeyTeplyakov/CodeContracts,hubuk/CodeContracts,Microsoft/CodeContracts,Microsoft/CodeContracts,ndykman/CodeContracts