COMPAT: change neg of boolean to inv (deprecation in numpy 1.9)
COMPAT: remove deprecation warnings on __new__ (in computation/pytables)
COMPAT: fix array_to_datetime on comparison of NaT
COMPAT: fix warning for slice indexers when using floats in iloc that are convertible
Merge pull request #6960 from jreback/warnings

COMPAT: fix numpy 1.9-dev deprecation warnings in test suite