Merging //depot/Partners/Zombie/UE4-iOS/... to //depot/UE4/...
Milestone 1 and 2 combined (CL# 2047358 to 2055524)
-Run external tools
-Repeat tests N times
-Visual difference for editor vs game tests
-Static mesh UV test
-Editor window screenshots
-Automation test presets
-Static mesh editor test
[CL 2055603 by kevin hamilton in Main branch]
