TODO list for Perl module Handel (in no particular order):

    - Handel::Checkout new/add_handler needs opto/memoization
    - Handel::Order needs to set updated field automagically
    - Update create_accessors to take an accessor_map/ro/wo/rw
    - AxKit Tablibs need reworked for subclassing
    - TT plugins need reworked for subclassing
    - add taglib test to check for bogus filter names
    - enhance demo sites to use full feature set
    - slim taglib code to remove repeated code blocks left for clarity
    - find translation volunteer other than Google translate
    - clean up cart test variable names
    - add additional cart restore w/filter tests for multiple saved carts