Revert "A file was deleted"

This reverts commit 1859abc932200259dd3eb758466f03238533f4ab.
Revert "Added IOUtils.h"

This reverts commit 3919a3580c9b89e91f503da6eaeaacf20cb3e1ad.
Revert "Revert "A file was deleted""

This reverts commit 0d98122c6c0597c097b3eaaf5ae777b0b6d4482f.
Revert "Revert "Added IOUtils.h""

This reverts commit af5967687774d4292ec4fd31d478eef3d981ce35.