Append the start time of the current loop to the animation time.
Append the start time of the current loop to the animation time.

currentTime() uses the total time, so when we use only the loop-local
time for the child animations, normal animations will seem to have
terminated long ago (on the previous loop).

Change-Id: I80a229f40a99569014d8082d153ad579c09fb9db
Reviewed-by: Michael Brasser <acf66a4a6ae67569abc58c29c7a264afd3e1cc1c@live.com>

matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative,matthewvogt/qtdeclarative