camlistored: signal typo s/SIGTERM/SIGINT/

Change-Id: I1111cd4911b08c3d6e8459916358432cb52ed6a1
Merge "camlistored: signal typo s/SIGTERM/SIGINT/"
camput: add --delete_after_upload flag.

But untested in tree mode. I think it's incomplete still.

Change-Id: Ia0c692e53a099b12a2b66735c228ea6f78d9c940