Changed the calculation of inner product in model ns cpmg 2site 3d.
The out argument of numpy.dot is buggy, and should not be used.
Task #7807 (https://gna.org/task/index.php?7807): Speed-up of dispersion models for Clustered analysis.
Authored by: tlinnet 2014-06-16
Parent: [r24006]
Child: [r24008]
