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/defsecrules_test.go b/acceptance/openstack/compute/v2/defsecrules_test.go
index ca221be..16c43f4 100644
--- a/acceptance/openstack/compute/v2/defsecrules_test.go
+++ b/acceptance/openstack/compute/v2/defsecrules_test.go
@@ -6,6 +6,7 @@
 	"testing"
 
 	"github.com/gophercloud/gophercloud/acceptance/clients"
+	"github.com/gophercloud/gophercloud/acceptance/tools"
 	dsr "github.com/gophercloud/gophercloud/openstack/compute/v2/extensions/defsecrules"
 )
 
@@ -26,7 +27,7 @@
 	}
 
 	for _, defaultRule := range allDefaultRules {
-		PrintDefaultRule(t, &defaultRule)
+		tools.PrintResource(t, defaultRule)
 	}
 }
 
@@ -42,7 +43,7 @@
 	}
 	defer DeleteDefaultRule(t, client, defaultRule)
 
-	PrintDefaultRule(t, &defaultRule)
+	tools.PrintResource(t, defaultRule)
 }
 
 func TestDefSecRulesGet(t *testing.T) {
@@ -62,5 +63,5 @@
 		t.Fatalf("Unable to get default rule %s: %v", defaultRule.ID, err)
 	}
 
-	PrintDefaultRule(t, newDefaultRule)
+	tools.PrintResource(t, newDefaultRule)
 }