BUGFIX: remove Database::getsubtotals() call from PrehLib::chargeOk()
It did nothing useful and caused mixups lifting previous values
from localtemptrans.card_no
Added a custom kicker for McCuskers Market
Kicks on all tenders and does not kick for longin or out.
Forgot part of the kicker code.

Conflicts:
	pos/is4c-nf/lib/Kickers/MCC_Kicker.php
Added a prompt for tare plugin file.
Prompt for Tare wright plugin.
Merge pull request #332 from FranklinCoop/core_master

Fixes to my earlier push.
Merge remote-tracking branch 'origin/master' into posDevelop
Lane-side products table updated to match Fannie. New line_item_discountable
flag enforced by relevant DiscountType modules