Added unit test for doing the matrix exponential for complex data.
This test shows, that the dtype=complex64, should be removed from lib/dispersion/ns_mmq_2site.py.
Task #7807 (https://gna.org/task/index.php?7807): Speed-up of dispersion models for Clustered analysis.
Authored by: tlinnet 2014-06-23
Parent: [r24242]
Child: [r24244]
