Add support for boot2docker

Basically, allow proxying ports on arbitrary IP addresses, not just 127.0.0.1.
Merge pull request #32 from bobthecow/feature/boot2docker

Add support for boot2docker
Ignore generated service plist

Keep contributors from accidentally committing their local version.
Add grunt, release task.

We're using grunt-semantic-release FTW.

Stub out a "test" grunt task — All it's doing for now is linting the Gruntfile, but that will change. Soon, it will lint *all* the files!
Add us some Travis.
Merge pull request #34 from bobthecow/feature/semantic-releases

Add semantic release support.
chore(travis): token setup for semantic release
Merge remote-tracking branch 'hoodiehq/master' into fix/yosemite-compatibility
We should be using our own anchor.