Adds .settings file, routing, local docker registry and nice colors

[olmoser]

This PR adds the following:

• a .settings script to enable/disable the k8s addons (DNS,UI) as well as other stuff (port forwarding, routes etc.)
• some reformatting and colors for the console output
• adds the google DNS servers to skydns so that you can use skydns for local name resolution
• a custom route entry to use skydns locally and interact with the k8s service via their DNS name
• a local Docker registry (can be controlled via .settings) to make local Docker images available to k8s (no need to push local images to dockerhub)

cheers

[vyshane]

I'm not sure I like the idea of a settings file. I would prefer simply having the Docker registry and route setup as optional scripts in the scripts/ directory for now.

[olmoser]

fine for me. What about (optional) commandline switches, for instance

--start-registry

to start the local Docker registry?