admin orders/create - summary enhancement

Got these two in sync. 'special' and 'handling' added to both. bond
summary added to order create (was already in order edit).
admin orders - shipping/tracking enhancement

Updated so that the form will 'empty' once a new tracking number has
been successfully added, making it more obvious something has happened.
Also added a highlight to the last row in the table for once it has be
re-rendered.
enhancement to rendering. admin_task enhancement

Updated the rendering engine so that the top-most element of the
template itself can now contain a data-bind that gets rendered. very
handy for processList (hiding a row based on some criteria, for
example).
added a new renderFormat to the task list to hide tasks that have been
completed for more than a week.