Update to bitbake 1.16 branch as of 2013-03-12 11:44:42 +0100

571d88c knotty.py: fix unknown event bb.event.DiskFull
5aa75f8 ssh.py: add example SRC_URI
6437b32 ssh.py: throw ParameterError when someone tries ssh://foo; protocol=git
5ac3ab3 ssh: fix fetcher

Open-webOS-DCO-1.0-Signed-off-by: Martin Jansa <martin.jansa@palm.com>