Updates vagrant virtualbox.
Uses redis-server default package.
Starts only redis server.
Does not need vagrant files.
cleans up rails Dockerfile.
Adds rails image.
Ignores .vagrant.
Uses sqlite3.
changes setup and initialize scripts.
Uses sqlite3 for testing pruposes.
Updates redis repository and image.
Fixes rails image builder: uses rvm and nfs.
Forwards port 3000 to host.
Configures sql server.
Merge branch 'redis'