Slightly relax joint WLS test in response to b831a4b4
Slightly relax joint WLS test in response to b831a4b4

Because of the commit referenced joint WLS is less biased and
compares better to ML.  The tables in question do not change much.

See below:

NEW / FAILING
> tabo

     0  1  2  3
  0 56 34 27  8
  1 33 17 39 36
> tabe

     0  1  2  3
  0 63 29 26 13
  1 22 24 38 35

OLD/ PASSING
> tabo

     0  1  2  3
  0 57 34 27  8
  1 32 18 39 35
> tabe
     0  1  2  3
  0 63 29 26 13
  1 22 24 38 35

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