Update team bid payment page for KK28.

Include page title.
Use references to central `$date` variable.
Revert adding Hat Draw details.
Whitespace fixup.
Update bidding.php to KK28.

Remove some dates we are not sure of yet.
Update the dates we know (via the centralized `$date`.
Centralize annual strings.

Declare the strings like 'KKXX' and Kaimana 'XX' in a central variable.  Then reference this variable in front-end pages so that every year the number of the tournament only has to be changed in one place.