there seem to be differences between the 3.2 and 3.3 sdk. For example, in alfresco-core-3.2r2.jar in package org.alfresco.config, there exists a Config.class as well as a number of other classes that don't exist in org.alfresco.config in alfresco-core-3.3g.jar nor in alfresco-core-3.3.jar. In attempting to upgrade from 3.2 to 3.3, I find significant differences in the sdks. What is the best way to approach this problem?