minidom: re-export rxml

As it's now being used in Element::attr and ElementBuilder::attr

Signed-off-by: pep <pep@bouah.net>

minidom/src/lib.rs

@@ -95,3 +95,4 @@ pub use element::{Children, ChildrenMut, Element, ElementBuilder};
 pub use error::{Error, Result};
 pub use namespaces::NSChoice;
 pub use node::Node;
+pub use rxml;