Added a paidout department. Works just like the bottle return department.
Litle change so negativity is handled in DeptKey as well as priceOverride.
Missed some hard coding test cases in the tare prompt.
Changes to the tneder types to make the cashier not have to type the negative sign before.
Also fixed some issues where the transaction would end badly for returns if the value entired was anything other then the exact return amount.
Changes to the tender modules to accept - or + keyed amounts on a return.
Fixed an issue where the total was a negative (return) value and a number less then the total was entired the sale
would not end and it would say the customer owes the diffriance.
Fixed a realtd issue where when the total is negative (return) and a number more then the total was entired it would say that change was owed the customer.
Both now disaply and error saying that the exact value should be entired for returns.
Changes to the tneder types to make the cashier not have to type the negative sign before.
Also fixed some issues where the transaction would end badly for returns if the value entired was anything other then the exact return amount.

Conflicts:
	pos/is4c-nf/lib/Tenders/CreditCardTender.php