Auto fails when proof RAR is missing

[Gfy]

seems you can't srr when proofrar is missing, but works with missing subsrar

The following error can be seen:

Referenced file not found: proof.rar

Missing a single RAR file in the Proof folder should not cause the SRR file creation to fail.

[Gfy]

A missing proof RAR may not prevent an SRR from being created. Fixes issue #117

→ <<cset 135cfa31d7e3>>