Merge topic 'exodus-single-timestep'

7e32d899 Fix a bug in vtkExodusIIReader when # of timesteps equals one.

Acked-by: Kitware Robot <kwrobot@kitware.com>
Acked-by: Robert Maynard <robert.maynard@kitware.com>
Reviewed-by: David E DeMarle <dave.demarle@kitware.com>
Merge-request: !1308