fix header title concat, fix widget resize header sizing, add scroll bar...

All three things we discussed this morning in a working form. At the moment there is no toggle that drops down on the drag-location bar, but you can click and drag it (some glitches on the edges, but for a demo it works fine. It also tracks the scrollto clicks and resizes with window size changes. It is -slightly- off, but I think that is caused by the space in between the modules.