remove javacc from ide-dependencies as per comment https://github.com/apache/incubator-freemarker/pull/16#issuecomment-269393716
remove javacc from ide-dependencies as per comment https://github.com/apache/incubator-freemarker/pull/16#issuecomment-269393716

apache/incubator-freemarker,apache/incubator-freemarker