JBPM-4400: Problems using persistences with human tasks in OSGi
DROOLS-567 Improve Examples
-Update documentation
JBPM-4400: Problems using persistences with human tasks in OSGi 
 - removing test code
DROOLS-488 "Pluggable and Encapsulated Knowledge Types"
-Refactored the plugin mechanism, to make it more generic.
DROOLS-488 "Pluggable and Encapsulated Knowledge Types"