extended data check for company
extended data handling for person title, type and status
added check for NULL parameter
Added foreign keys for address and address type
added foreign keys for category and category type
added foreign keys to the communication tables
added foreign keys to the company table
additional indexes for the contact master table
additional indexes for the country table
added empty value for "no country"
added foreign keys for the note table
added foreign keys to the overview table
added foreign keys to the person table
added foreign keys to the tag and the tag type table
added foreign keys to the title table
added a NO CATEGORY entry
improved setup and added uninstall routine