rename forum_desc column refs #149
rename forum_topics column refs #149
rename forum_posts column refs #149
rename forum_moduleref column refs #149
rename forum_name column refs #149
rename user_posts column refs #149
upgrade correction refs #149
rename user_autosubscribe column refs #149 (did not exist in 3.1)
rename user_level column refs #149 (not used?)
rename user_lastvisit column refs #149
rename user_post_order column refs #149
rename user_rank column. refs #149
rename post_title column refs #149
rename post_first column refs #149 (did not exist in 3.1)
rename post_msgid column refs #149
rename post_attach_signature column refs #149 (did not exist in 3.1)
rename rank_title column refs #149
rename rank_desc column refs #149
rename rank_min column refs #149
rename rank_max column refs #149