Update Riot to 1.5.13
Summary:
Update Riot to 1.5.13
Changelog available here
Test Plan: Used Riot to chat with friends for a couple of hours, including sharing images, links, etc.; made a short conference call
Reviewers: Triage Team, JoshStrobl
Reviewed By: Triage Team, JoshStrobl
Subscribers: JoshStrobl
Differential Revision: https://dev.getsol.us/D8507