Improve animation of green screen
Do not reset phone # when user mistyped verification code
"Fix" animation of green screens.
Problem is that none of them animate out properly according to documentation.
According to documentation only top most view should be animated out,
while bottom views should be dismissed w/o animation. However I found
that it is not true and couldn't find a solution to this in a reasonable time.
Fix a bug for a brand new installs where school is not set