Class loading not J2EE compliant in PlutoFactoryFactoryBean

PlutoFactoryFactoryBean.java uses Class.forName to load a class. This does not work if jetspeed-cm-*.jar is not bundled in the WAR (or better: not loaded by the WAR-classloader) but available as a library in an EAR (the WAR classloader searching EAR libraries first to allow simple EJB invocation). As generally recommended, the context classloader should be used (see patch).