BUGFIX: error in scoring algorithm when two players on the contra team made a call

BUGFIX: error in scoring algorithm when two players on the contra team made a call

to figure out who made the lower call, you need to compare the two calls, but for some
reason instead of comparing the two contra-calls, the contra call was compared to the re-call
which could make the algorithm belief that the contra-call was higher than it was.

Signed-off-by: Arun Persaud <arun@nubati.net>