Use generic XmlImporter rather than OaiPmhResponse

Author: danmichaelo

src/Collection.php

@@ -3,7 +3,7 @@
 namespace Scriptotek\Marc;
 
 use Scriptotek\Marc\Importers\Importer;
-use Scriptotek\Marc\Importers\OaiPmhResponse;
+use Scriptotek\Marc\Importers\XmlImporter;
 use Scriptotek\Marc\Importers\SruResponse;
 
 class Collection
@@ -27,7 +27,7 @@ public static function fromString($data)
 
     public static function fromOaiPmhResponse($data)
     {
-        $importer = new OaiPmhResponse($data);
+        $importer = new XmlImporter($data);
 
         return $importer->getCollection();
     }

src/Record.php

@@ -140,7 +140,7 @@ public function get($spec)
     {
         $reference = new \File_MARC_Reference($spec, $this->record);
 
-        return $reference ?: array();
+        return $reference->content ?: array();
     }
 
     public function __call($name, $args)