Changes to coordinate with kokkos/kokkos#1886.

Various ViewMapping partial specializations now require the final
template parameter to be the specialize tag, rather than explicit void.

These changes ensure Sacado and Stokhos compatibility with the Kokkos changes.

Test with Cuda_Serial build on waterman with cuda/9.2+gcc/7.2

 Changes to be committed:
	modified:   packages/sacado/src/KokkosExp_View_Fad.hpp
	modified:   packages/sacado/src/KokkosExp_View_Fad_Contiguous.hpp
	modified:   packages/sacado/src/Kokkos_DynRankView_Fad.hpp
	modified:   packages/sacado/src/Kokkos_DynRankView_Fad_Contiguous.hpp
	modified:   packages/sacado/test/UnitTests/Fad_KokkosTests_Cuda.cpp
	modified:   packages/stokhos/src/sacado/kokkos/pce/KokkosExp_View_UQ_PCE_Contiguous.hpp
	modified:   packages/stokhos/src/sacado/kokkos/vector/KokkosExp_View_MP_Vector_Contiguous.hpp

Remove additional argument to view ctor.
 Changes to be committed:
	modified:   stokhos/src/sacado/kokkos/Stokhos_Tpetra_Utilities.hpp

…549b57

From repository at git@github.com:kokkos/kokkos.git

At commit:
commit 5d6e7fb38e96aec88d2c514e1f9be1cf2b549b57
Merge: 9614f72 d1659d1
Author: Nathan Ellingwood <ndellin@sandia.gov>
Date:   Tue Feb 5 17:10:27 2019 -0700

    Merge branch 'develop' for 2.8.00

    Part of Kokkos C++ Performance Portability Programming EcoSystem 2.8

…1763439cb56039

From repository at git@github.com:kokkos/kokkos-kernels.git

At commit:
commit 4ee5f3c6dbd0981f6d8c7a9b2b1763439cb56039
Merge: 94456cf 6a79032
Author: Nathan Ellingwood <ndellin@sandia.gov>
Date:   Tue Feb 5 17:13:18 2019 -0700

    Merge branch 'develop' for 2.8.00

    Part of Kokkos C++ Performance Portability Programming EcoSystem 2.8