Start using omnibus-soloist
Start using omnibus-soloist

So we can eventually remove our reliance on system ruby and having to
"sudo" everything.

Signed-off-by: Brian Cunnie <08b1994189fa435ac5418242919427d718cd7695@pivotallabs.com>

pivotal-sprout/sprout-orchard,pivotal-sprout/sprout-orchard