Bellows 0.1.4 Released

Bellows now offers a generic Traversal API for iterating across a List of nodes, passing the nodes back to one or more NodeProcessor classes. The Bellows query engine has been ported to the Traversal API, cleaning up the code nicely. Catalan will make extensive use of the new API. This release also provides a new LogUtil class to make Apache Commons logging even easier. And finally, to better differentiate between attribute paths and attribute filters in the query language, this release changes the path syntax to use the ampersand character; the attribute filter still uses the old '@attribute' syntax.