Add writing of setup.csh for C-shell users.
Add writing of setup.csh for C-shell users.

zbeekman/opencoarrays,sourceryinstitute/opencoarrays,jerryd/opencoarrays,sourceryinstitute/opencoarrays,sourceryinstitute/opencoarrays,jerryd/opencoarrays,jerryd/opencoarrays,zbeekman/opencoarrays,zbeekman/opencoarrays