Update black config, update .flake8 config so we ignore rules which conflict with black.
Update black config, update .flake8 config so we ignore rules which
conflict with black.

StackStorm/st2,StackStorm/st2,StackStorm/st2,Plexxi/st2,Plexxi/st2,Plexxi/st2,nzlosh/st2,StackStorm/st2,Plexxi/st2,nzlosh/st2,nzlosh/st2,nzlosh/st2