setup appdb tables. Add app_category.sql and session_list.sql from Jeremy, without these the database wasn't handling logins correctly and had no categories. README now has some instructions on how to setup a local appdb. Modified config.php.sample to point to apidb to match what is in the sql in appdb/tables. Sql for table creation to use "if exists" to prevent data base errors on trying to drop tables that don't exist.