Working on launch.

Change-Id: Id4d0b61565127c60478cbf6d3da1e4f899f9987c
Merge "Working on launch."
s3: no need to verify hash in ReceiveBlob; handled elsewhere now

Change-Id: I91e85201555f769a8f37a00fe4c0e250a291f298
Match common Go case

Change-Id: I14606ee5ba422cf43f68dc65af2b40a096c7ca35