Build: Fix effect demo url (typo)
(cherry picked from commit 2daf09d67160eceddd2b024d2698930e12193ba9)
Release: Ability to provide a different repo for testing.
(cherry picked from commit 562f88472237288f4e46a4944e9bf77a3dd205a7)
Updated AUTHORS.txt.
Release: Use 1-10-stable.