added getListOptions for category options and category contact types
added missing strings, change gender desc
changed gender type=category to text
fixed varname clients/client
added clause to show only published items
added strings for select lists
added parent_id, catid, address_region, changed company_name to company
fixed de-DE lang file
fixed lang strings
update models to work with new structure
addex xsession support, updated events/trigger to work with new tabs and widgets
changed gender sql col type to varchar
changed getListOptions method to get also contacts to select as parent (at this time only companies)

various bugfixes