Rearrange JobClient methods so highest-level, most important method toward top.
Rearrange JobClient methods so highest-level, most important method toward top.

natefoo/pulsar,jmchilton/pulsar,ssorgatem/pulsar,jmchilton/lwr,galaxyproject/pulsar,ssorgatem/pulsar,natefoo/pulsar,galaxyproject/pulsar,jmchilton/lwr,jmchilton/pulsar