Lesson Builder cannot be configured not to look for jforum

JForum is not part of the official Sakai.

If you don't have it, you get an annoying WARN with logs:
2011-06-10 14:45:43,474 WARN TP-Processor12 org.sakaiproject.db.impl.BasicSqlService - Sql.dbRead: sql: select b.categories_id, b.title from jforum_sakai_course_categories a, jforum_categories b where a.course_id=? and a.categories_id = b.categories_id order by b.display_order testcourse
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Table 'sakaifr28.jforum_sakai_course_categories' doesn't exist