Add stefanha's block branch

I co-maintain the block layer with Kevin Wolf <kwolf@redhat.com>.  We
have our own repos and I'd like to ensure that mine receives coverage
too.

Just use AnyBranchScheduler() for now.  Not sure nightly is necessary.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Add stefanha's net branch

I maintain the net tree.  Add it to the buildbot so it receives
coverage.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Merge pull request #3 from stefanha/stefanha-repos

Add stefanha's block and net branches