MetaDataReader exposes a private exception class on the public API

MetaDataReader can be useful outside the Metatype bundle and is part of the bundle's public API. But some public methods of MetaDataReader expose XmlPullParserException which is a private class (from the embedded xmlpull):

public MetaData parse( URL url ) throws IOException, XmlPullParserException
public MetaData parse( InputStream ins ) throws IOException, XmlPullParserException

This prohibits the use of MetaDataReader from outside the Metatype bundle.