util|scrooge|finagle|twitter-server|finatra: Update TravisCI badge links
util|scrooge|finagle|twitter-server|finatra: Update TravisCI badge links

Problem/Solution

We recently moved the projects from `travis-ci.org` to `travis-ci.com` and
need to now update the badge links.

Differential Revision: https://phabricator.twitter.biz/D501490

twitter/twitter-server,twitter/twitter-server,twitter/twitter-server