Tokens added to Repository Commits and Pastes

Summary: Ref T3023

Test Plan: Tokens visible when awarded to these applications and notifications successful.

Reviewers: epriestley, AnhNhan

Reviewed By: AnhNhan

CC: aran, Korvin, AnhNhan

Maniphest Tasks: T3023

Differential Revision: https://secure.phabricator.com/D5859