Revert "add test accounts for QA environment."

This reverts commit 190cc44d7cdcb64c1a59653846d4443f193cb599.
add test accounts of QA environment
add features for test content update.
Fix "Logging in" not counted as loading, which caused some scripts to fail sometimes.
Potential fix for not reliable identifying when activity screen has been exited.
Fix calculation of screenshot diff when rotated.
Add error message if unit is unlocked when trying to enter a step.
Merge remote-tracking branch 'origin/master' into testFeatures