[finagle/util/twitter-server] add hallam as owner to projects
[finagle/util/twitter-server] add hallam as owner to projects

Problem:
hallam should own some projects.

Solution / Result:
Add hallam. Add banderson to finagle-thriftmux

Differential Revision: https://phabricator.twitter.biz/D619360

twitter/util,twitter/util,twitter/util