Fix the issue mentioned in PR #186

jme3-plugins/src/ogre/java/com/jme3/scene/plugins/ogre/MaterialLoader.java

@@ -450,6 +450,9 @@ public class MaterialLoader implements AssetLoader {
                 }
                 String[] split = statement.getLine().split(" ", 2);
                 matName = split[1].trim();
+                if (matName.startsWith("\"") && matName.endsWith("\"")) {
+                    matName = matName.substring(1, matName.length() - 1);
+                }
                 readMaterial(statement);
                 Material mat = compileMaterial();
                 list.put(matName, mat);