[Fixes ##99004458] Multiple plots using the y-axis were being restored in the wrong order. This was because of a logic error in addPlotView using a -1 index for splicing in the new view when it should have been the current length of the array for the situation in which the view did not yet have a model.
[Fixes ##99004458] Multiple plots using the y-axis were being restored in the wrong order. This was because of a logic error in addPlotView using a -1 index for splicing in the new view when it should have been the current length of the array for the situation in which the view did not yet have a model.

concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap,concord-consortium/codap