Can not override bootstrap_form_element for webform elements

At the end of Bootstrap's implementation of theme_webform_element() in the file templates/webform/webform-element.func.php, there is a direct call to the function bootstrap_form_element(). This works fine but means that a subtheme can not override theme_form_element() without also overriding theme_webform_element().

Simple fix:

// Render with bootstrap_form_element().
bootstrap_include('bootstrap', 'templates/system/form-element.func.php');
return bootstrap_form_element($variables);

Becomes:

// Render with bootstrap_form_element().
return theme('form_element', $variables);