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/compute/v2/keypairs_test.go b/acceptance/openstack/compute/v2/keypairs_test.go
index 3c6abb4..c4b91ec 100644
--- a/acceptance/openstack/compute/v2/keypairs_test.go
+++ b/acceptance/openstack/compute/v2/keypairs_test.go
@@ -6,6 +6,7 @@
 	"testing"
 
 	"github.com/gophercloud/gophercloud/acceptance/clients"
+	"github.com/gophercloud/gophercloud/acceptance/tools"
 	"github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/keypairs"
 	"github.com/gophercloud/gophercloud/openstack/compute/v2/servers"
 )
@@ -29,7 +30,7 @@
 	}
 
 	for _, keypair := range allKeys {
-		PrintKeyPair(t, &keypair)
+		tools.PrintResource(t, keypair)
 	}
 }
 
@@ -45,7 +46,7 @@
 	}
 	defer DeleteKeyPair(t, client, keyPair)
 
-	PrintKeyPair(t, keyPair)
+	tools.PrintResource(t, keyPair)
 }
 
 func TestKeypairsImportPublicKey(t *testing.T) {
@@ -65,7 +66,7 @@
 	}
 	defer DeleteKeyPair(t, client, keyPair)
 
-	PrintKeyPair(t, keyPair)
+	tools.PrintResource(t, keyPair)
 }
 
 func TestKeypairsServerCreateWithKey(t *testing.T) {
@@ -78,11 +79,6 @@
 		t.Fatalf("Unable to create a compute client: %v", err)
 	}
 
-	choices, err := clients.AcceptanceTestChoicesFromEnv()
-	if err != nil {
-		t.Fatal(err)
-	}
-
 	publicKey, err := createKey()
 	if err != nil {
 		t.Fatalf("Unable to create public key: %s", err)
@@ -94,7 +90,7 @@
 	}
 	defer DeleteKeyPair(t, client, keyPair)
 
-	server, err := CreateServerWithPublicKey(t, client, choices, keyPair.Name)
+	server, err := CreateServerWithPublicKey(t, client, keyPair.Name)
 	if err != nil {
 		t.Fatalf("Unable to create server: %s", err)
 	}