Vagrant support for new settings structure

- uses enviornment vars
- loads script that you can source when `vagrant ssh`'d in
4 jobs for 107-split-settings in 1 minute and 1 second (queued for 2 seconds)
Status Name Job ID Coverage
  Test
passed Go-py2.7 #2311

00:00:51

passed Go-py3.4 #2312

00:01:00

passed Go-py3.5 #2313

00:00:55

passed Go-py3.6 #2314

00:01:01

72.0%