The use of `nodeValue` on `Attr` objects causes a deprecation warning in Firefox since version 7. This patch causes calls to `value` instead of `nodeValue` for all `Attr` objects. This closes #362.
The use of `nodeValue` on `Attr` objects causes a deprecation warning in Firefox since version 7. This patch causes calls to `value` instead of `nodeValue` for all `Attr` objects. This closes #362.