Adds support for auto-registering into an environment.
Removed Ubuntu 14.04. Works fine, but I don't know if it's officially supported.
Revert "Removed Ubuntu 14.04. Works fine, but I don't know if it's officially supported."

This reverts commit 2e674b109fc87cd6c2f96f874d690d3e9a409c73.
Merge pull request #32 from localytics/master

Adds support for auto-registering into an environment.