Summary: Problem

We want to release the next versions of our Twitter OSS libraries:
 - util -> 7.1.0
 - scrooge -> 4.20.0
 - finagle -> 7.1.0
 - twitter-server -> 1.32.0
 - finatra -> 2.13.0

Solution

Prepare libraries for their next releases.

Differential Revision: https://phabricator.twitter.biz/D87932