update build-release.xml version-release target to use correct location of log4j.jar

version-release target in build-release.xml (to produce distribution zips) has the following:
<javac destdir=".">
<src path="${jboss.build.dir}"/>
<classpath>
<pathelement location="${jboss.dist}/lib/dom4j.jar"/>
</classpath>
<include name="VersionRelease.java"/>
</javac>
<echo message="Versioning: jboss-${version}"/>
<java classname="VersionRelease">
<arg value="${jboss.dist}"/>
<classpath>
<pathelement location="."/>
<pathelement location="${jboss.dist}/lib/dom4j.jar"/>
</classpath>
<syspropertyset>
<propertyref prefix="version"/>
<propertyref prefix="specification"/>
<propertyref prefix="implementation"/>
</syspropertyset>
</java>
However ${jboss.dist}/lib does not contain dom4j.jar. We should not add dom4j.jar to the lib directory
unnecessarily for this.
A suggestion by Ryan Campbell:
replace ${jboss.dist}/lib with ${jboss.dist}/server/all/lib