Replace in csv file the \r infavor of \n.
Check if the file is accessible and convert \r to \n.
Fix TODO.
Replace the old file with the new file we processed and delete the old.
Delte the file after the import was done and bring back the comment.
Merge branch 'SCHOLAR-3.x' into 4453.
Merge pull request #4496 from openscholar/4453

Replace in csv file the \r infavor of \n.