/// Adds the module information to the baseClass information to
/// create our local DocumentClass.
/// NOTE: This should NEVER be called externally unless one immediately goes
/// on to class BufferView::updateDocumentClass(). The exception, of course,
/// is in GuiDocument, where we use a BufferParams simply to hold a copy of
/// the parameters from the active Buffer.
/// Adds the module information to the baseClass information to
/// create our local DocumentClass.
/// NOTE: This should NEVER be called externally unless one immediately goes
/// on to class BufferView::updateDocumentClass(). The exception, of course,
/// is in GuiDocument, where we use a BufferParams simply to hold a copy of
/// the parameters from the active Buffer.