[#27] update window title if contact name changes
[#27] fixed some weird NSTableCellView problems

controls inside the table view couldn't be bound
to "Table Cell View" because there was no such
entry on the bindings list for some reason; I've
rebuilt the table cell view with labels&images
to look exactly the same and now the option is there
[#27] fill contacts table data using bindings
[#27] refresh contact name when first/last name changes
[#27] re-sort contact list when contact is edited