Support HTTP authentication for replication

Gerrit now supports HTTP Basic and Digest authentication when
a remote http:// URL is configured for replication.  The password
can be supplied by secure.config.

Change-Id: Id1277ba8d9a8653f1b2f94d8b5fe94323623c5c5
Signed-off-by: Shawn O. Pearce <sop@google.com>
5 files changed