Added 'delete' command to analyze.

Verified that 'dump and restore' works.
Downloaded data files stored in /tmp directory.

Issue #4. Keep things a bit more tidy.
Config file now named 'config.json'

Issue #2.
Cleanup, work in progress, setup.py

Decided to add setup.py, turning this into a distribution, get rid of
the need for relative imports and / or PYTHONPATH stupidity.
Issue #1 (add 'mapping' to config)

But really much more, ongoing and chaotic cleanup of the code base.
Got rid of globals in bench.py
Added 'client.py' as the main command line script

Single point of entry, analyze.py and bench.py should no longer be
called from the command line. Towards single clear interface (nested
parsers with argparse).

Version bump to 0.0.4