Upgrade to the most recent version of Freemarker-2.3-gae: this is not an official release yet but it will be soon; I have committed this work, as discussed in the dev list, in order to get help from the community to test this new improved version of Freemarker and provide feedback to the Freemarker community.

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1605029 13f79535-47bb-0310-9956-ffa450edef68