Most changes in 1.2 are in the internal implementation and do not affect
public APIs. However there are a couple of publicly visible features:

- Namespace registration. Namespace URIs can now be associated with prefixes
at the level of JXPathContext.

- JXPathContext has two new convenience methods: selectNodes and selectSingleNode.
- Type conversion is integrated with BeanUtils.

This release also includes countless bug fixes and implementation improvements.