Fix PARAVIEW_DATA_ROOT

Change-Id: I8432a060bed14c8630ef9610fb99894a5d6fa7de
Fix data paths in Application tests

Change-Id: Icb6f5328c05e890a89d35d6bde2deae6031057b9
PARAVIEW_DATA_ROOT is now always available

Change-Id: Iac1d5afb7d990d4fea68f29cc1ebb9b30e230d6c