Fixing branch assumptions

Signed-off-by: Yuri Weinstein <yuri.weinstein@inktank.com>
powercycle: fuse_default_permissions = 0 for kernel build

Signed-off-by: Sage Weil <sage@redhat.com>
ceph: wait for snap trim

Signed-off-by: Samuel Just <sam.just@inktank.com>