HPCC-11789 DFU Workunits not showing owners

Fixes HPCC-11789

Modify the grid call from Owners to Users (which is what the response is sending).

Signed-off by: Miguel Vazquez <miguel.vazquez@lexisnexis.com>
H11802 Docs:Debug for Build Fail

Added some file changes to avoid fail at buildtime.

Signed-off-by: g-pan <greg.panagiotatos@lexisnexis.com>