KPV tests: Mock passed into numpy causes segfault.

Disabled some tests that caused a segmentation fault due to a mock being
passed into numpy. The culprit was a generic test case class which needs
to be reworked to suit other cases... We should also find a way to make
the test fail rather than throwing the segfault.
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Merge branch 'master' of github.com:FlightDataServices/FlightDataAnalyzer