Merge pull request boot2docker#145 from SvenDowideit/stage-1.12.0

0.12.0

Merge pull request boot2docker#136 from SvenDowideit/use-actual-vbox-…

…ports

boot2docker ip outputs the host only network IP

Merge pull request boot2docker#127 from SvenDowideit/release-script

how I built the 0.9.2 boot2docker-cli release

Merge pull request boot2docker#124 from SvenDowideit/not-env-vars

we don't use Env vars like this, so tell the user the cmdline option they could use

Merge pull request boot2docker#87 from riobard/gofmt

Ran `gofmt`