Better handling of date parameters in queries
Debug filename log is hourly now
New functions: get_date_format and get_timestamp_format
get() method can return an object by id. Example: $db->get('USERS', 3320)
Added tablename in the return of get() method
Added delete() and next_sequence() methods
Added object_or_null() method
Fixed bug in parse_sql() method
Warning of implicit commit of drop_table_if_exists() method