Better compliance with the JSP taglib XSD...
Avoid caching when it's not required
Improved caching and added beta support for JMX
JMX:
 * New jmx configuration property that enables the JMX support. A MBean will be registered in the default platform mbean server and allows to reload bundles and clear cache. Still in beta.
Caching:
 * New cache.name configuration property allowing to choose which caching system to activate.
 * Fixed initialization of the configuration when using the Ehcache extra