Revert "trying removal of CMakeLists.txt.user again"

This reverts commit 07f30adaf3288f2d0bea654a355353495ffe52b6.
Revert "Removing CMakeLists.txt.user from repo"

This reverts commit 1ae2b6329b3b76edd156019f820ff332d39d4aed.
Revert "removed remaining std::s"

This reverts commit 153a25042475efa7069d61fb4c294b2dea53606a.
Revert "Removed more std:: instances"

This reverts commit 9ba571b1406a9cbaf8cf56b89650cec5cbca8879.
replaced std::endl with endl again