Replaced files with those from upstream.

cmake/CMakeLists.txt

doc/src/Build_extras.txt

doc/src/Build_package.txt

doc/src/Commands_kspace.txt

doc/src/Packages_details.txt

doc/src/Packages_user.txt

doc/src/kspace_modify.txt

doc/src/kspace_style.txt

examples/USER/scafacos/data.NaCl

examples/USER/scafacos/data.cloud_wall

examples/USER/scafacos/data.hammersley_sphere

examples/USER/scafacos/in.scafacos

examples/USER/scafacos/in.scafacos.cw.ewald

examples/USER/scafacos/in.scafacos.cw.fmm

examples/USER/scafacos/in.scafacos.cw.p2nfft

examples/USER/scafacos/in.scafacos.cw.p3m

examples/USER/scafacos/in.scafacos.ewald

examples/USER/scafacos/in.scafacos.fmm

examples/USER/scafacos/in.scafacos.hsph.direct

examples/USER/scafacos/in.scafacos.hsph.fmm