Use the new build env on Travis

[joshk]

faster vm boot times more cpus and ram better network

(docs coming soon)

[matthiask]

Hi Josh, what does the sudo:false directive do exactly?

[joshk]

it routes the build to our new infrastructure which runs on EC2 using LXC via Docker

Docs coming soon

[joshk]

I see build times are roughly on par when compared to running on our other default setup, but one thing to note is that we can scale up this infrastructure more easily, plus vm boot times are non existent (1-2 seconds)

[matthiask]

Thank you!