Update mojo sdk to rev 5389c722cc306abdc33bef50b2c24a2d40738866
Fixes
Hold testing/ in git
Update mojo sdk to rev 5389c722cc306abdc33bef50b2c24a2d40738866
Update build script
Update mojo sdk to rev 5389c722cc306abdc33bef50b2c24a2d40738866