Reset the tab order when a new AMEnergyListElementView is inserted to the AMEnergyListView.
Merge pull request #983 from acquaman/Issue981

@XuetaoLiu-CLS 
I found it kinda weird that you had to expose the QDoubleSpinBox, but after looking at the setTabOrder() call I see why you did. I can't think of a cleaner way to do this off the top of my head, so I'll merge it. Thanks.