Rename table column 'id' of 'script_type_information' to 'scriptTypeId'; this column reflects the id of the source, so 0 for events would mean SMART_EVENT_UPDATE, 61 would mean SMART_EVENT_LINK, etc.
Add a small documentation file about the SQLite database (table structure so it's easier to understand)
Add some more methods to the SQLite database class for future use. In addition, if parameter values are null in DB, they are read as 0 instead of -1 from now on