doc: update README

Signed-off-by: John Spray <jspray@redhat.com>
doc/build: update 'inktankstorage' to 'ceph'

These are parts that moved when Calamari was
open sourced.

Signed-off-by: John Spray <jspray@redhat.com>
Merge pull request #126 from ceph/wip-readme

Updates to README and git paths
doc: fix 'clients' to be 'calamari-clients'

Signed-off-by: John Spray <jspray@redhat.com>
doc: remove setup.cfg, broke RTD build

Known pip bug, certain versions dislike a
setup.cfg in source dir.  Removing our
CFG is harmless because it was only
setting test log format.

https://github.com/pypa/pip/issues/1531

Signed-off-by: John Spray <john.spray@inktank.com>