putting the try/except for incorrect commands; also experimenting with help help_cli stuff
experimenting with cli help; might revert it later
cli help snapshot
cli help snapshot
putting xfail back onto the pe_sim_graph.py client test
Merge pull request #239 from SuperCowPowers/pe-sim-graph

putting xfail back onto the pe_sim_graph.py client test
Merge branch 'master' into cli-work
removing CLI dynamic method caused I finally figured out how to do default args acrossed zerorpc
standardizing on 'worker_name' for the name of a worker given as an argument