Route's been made Computed again, this fixes the tests:
Route's been made Computed again, this fixes the tests:

before:

```
------- Stdout: -------
=== RUN   TestAccAzureRMRoute_basic
--- FAIL: TestAccAzureRMRoute_basic (103.26s)
    testing.go:459: Step 0 error: Expected a non-empty plan, but got an empty plan!
FAIL

------- Stdout: -------
=== RUN   TestAccAzureRMRoute_multipleRoutes
--- FAIL: TestAccAzureRMRoute_multipleRoutes (104.12s)
    testing.go:459: Step 0 error: Expected a non-empty plan, but got an empty plan!
FAIL
```

after now:

```
$ acctests azurerm TestAccAzureRMRoute_basic
=== RUN   TestAccAzureRMRoute_basic
--- PASS: TestAccAzureRMRoute_basic (105.66s)
PASS
ok      github.com/terraform-providers/terraform-provider-azurerm/azurerm    105.682s

$ acctests azurerm TestAccAzureRMRoute_multipleRoutes
=== RUN   TestAccAzureRMRoute_multipleRoutes
--- PASS: TestAccAzureRMRoute_multipleRoutes (130.54s)
PASS
ok      github.com/terraform-providers/terraform-provider-azurerm/azurerm    130.578s
```

sebastus/terraform-provider-azurerm,sebastus/terraform-provider-azurerm,sebastus/terraform-provider-azurerm