mass cleanup to remove need to call statcollector.translatetolocal all
the time in GUIs -- widget elements will auto-translate any input text;
will still need pre-translation for compound text input
add some more utility methods to item/inventory manipulation classes
clean up issue with text placement w/ new text translation code
add basic translations for trade order gui
add pre-implementation of trade-order item gui/container.  Has
functionality to add trades / configure trades.  All other functionality
WIP