bug #157 fix ClassMetadata namespace (sadikoff)

This PR was merged into the 1.0-dev branch.

Discussion
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fix ClassMetadata namespace

fix: #156

Commits
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017c9a2 fix ClassMetadata namespace

src/Doctrine/EntityDetails.php

@@ -63,7 +63,7 @@ public function getFormFields()
         }
 
         foreach ($this->metadata->associationMappings as $fieldName => $relation) {
-            if (ClassMetadata::ONE_TO_MANY !== $relation['type']) {
+            if (\Doctrine\ORM\Mapping\ClassMetadata::ONE_TO_MANY !== $relation['type']) {
                 $fields[] = $fieldName;
             }
         }