upgrade: do not start second radosgw

Use the first one.  This verifies bobtail radosgw works against cuttlefish
osds.
upgrade: rgw: restructure collection

- use separate facets
- make final swift use client.1 so it doesn't
collide with a previous run
rgw asdf
upgrade: reorganize the basic/rados suite

Use facets instead of duplicating the test content each time.
upgrade: dbench instead of blogbench

blogbench hangs bobtail ceph-fuse in some
cases, it seems.
upgrade: debug fs jobs

These are hanging; crank up logs to see why.