Closes "Help screens in Manufacturing" https://issues.apache.org/jira/browse/OFBIZ-4802

This simply follows "HELP_OFBizDocumentationSystem.xml" i18n directives which have been overlooked so far. Of course having all i18n files in the same folder is not very convenient, but at least it works. This files organisation could be reconsidered, I'd need more work...

git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1563958 13f79535-47bb-0310-9956-ffa450edef68