This flag allows users to control wether multipart uploads
are blocked or allowed. At the moment s3proxy doesn't
encrypt multipart uploads, so there is a potential for
inadvertent data leakage. With this flag the default
behavior is changed to a more secure default one: block
multipart uploads. The previous behavior can be enabled
by setting allow-multipart.
INSECURE!
The proxy intercepts GetObject and PutObject.
A manual deployment guide is included.
The decryption only relies on a hardcoded, static key.
Do not use with sensitive data; testing only.
* Ticket to track ranged GetObject: AB#3466.
