Acceptance Test Updates (#218)

* compute: don't pass choices

* blockstorage: don't pass choices

* DumpResource Function

This function prints a resource in JSON format but retains the actual
field name rather than using the name specified in the JSON tag.

* New DumpResource

This version just converts the resource into JSON. The original is
being left in git history for posterity.

* Renaming DumpResource to PrintResource

* Removing all print functions in favor of PrintResource

* Rebase reconcilliation
diff --git a/acceptance/openstack/identity/v3/endpoint_test.go b/acceptance/openstack/identity/v3/endpoint_test.go
index 6a52f26..a589970 100644
--- a/acceptance/openstack/identity/v3/endpoint_test.go
+++ b/acceptance/openstack/identity/v3/endpoint_test.go
@@ -7,6 +7,7 @@
 
 	"github.com/gophercloud/gophercloud"
 	"github.com/gophercloud/gophercloud/acceptance/clients"
+	"github.com/gophercloud/gophercloud/acceptance/tools"
 	"github.com/gophercloud/gophercloud/openstack/identity/v3/endpoints"
 	"github.com/gophercloud/gophercloud/openstack/identity/v3/services"
 )
@@ -28,7 +29,7 @@
 	}
 
 	for _, endpoint := range allEndpoints {
-		PrintEndpoint(t, &endpoint)
+		tools.PrintResource(t, endpoint)
 	}
 }
 
@@ -58,7 +59,7 @@
 	}
 
 	computeService := allServices[0]
-	PrintService(t, &computeService)
+	tools.PrintResource(t, computeService)
 
 	// Enumerate the endpoints available for this service.
 	endpointListOpts := endpoints.ListOpts{
@@ -80,6 +81,6 @@
 		t.Fatalf("Expected one endpoint, got %d", len(allEndpoints))
 	}
 
-	PrintEndpoint(t, &allEndpoints[0])
+	tools.PrintResource(t, allEndpoints[0])
 
 }