Add riak_cli command wrapper function
Update rebar.config deps

* added getopt
* added riak_cli

TODO: Set a real tag on riak_cli when appropriate
Add riak_cli to .app.src
Use ssh to fetch riak_cli. Mea culpa.
Don't need getopt any more
Merge pull request #657 from basho/feature/mra/minimal-cli

Minimal riak_cli integration

Reviewed-by: andrewjstone