Avoid re-installing fpm unnecessarily
Avoid re-installing fpm unnecessarily

Summary: Trims nearly 8s off of our setup phase.

Test Plan: Changes

Reviewers: paulruan

Reviewed By: paulruan

Subscribers: changesbot

Differential Revision: https://tails.corp.dropbox.com/D165329

dropbox/changes-mesos-framework,dropbox/changes-mesos-framework