Add cassandra Dockerfile

Dockerfile to be use for dev/test Cassandra instance
Base Dockerfile

Contains just base rarely changing dependencies for Otter
Add otter Dockerfile

This is the Dockefile to build a useable otter environment
Change Cassandra to use java base image
Add java base Dockerfile
Add cassandra.yaml for dev/test config
Add git to otter/base
Add cloudcafe Dockerfile

Minimally functional. Still needs work.
Simple runner script to setup a full otter env

Should probably be moved to the Makefile eventually
Remove sed notes from runner
Add run_docker to Makefile and rewrite script

rewrite_config rewrites the config.json based on environment variables
passed into the docker container
Move cassandra folder instead of symlinking

Add (and I'm sure some other stuff) blows up trying to add stuff under a
symlink. This is a container so why screw around with symlinks anyway.
Repose Dockerfile
Add java to runner.sh
Change otter command to make run_docker
Reorg Makefile for run_docker
Change seed IP in cassandra.yaml
Fix cloudcafe
Don't use parallel in cloudcafe
Don't use simplejson