CVS directories left in the source tree

Hi,

There are some CVS directories left that could be removed:

```
xdocs/CVS
xdocs/benchmarks/CVS
xdocs/benchmarks/xpath/CVS
xml/CVS
xml/bean/CVS
xml/dtd/CVS
xml/jaxb/CVS
xml/moreover/CVS
xml/nitf/CVS
xml/relaxng/CVS
xml/schema/CVS
xml/swing/CVS
xml/xhtml/CVS
```