More widget updates from Zazzle

Merging in widget updates from Zazzle.  You should be able to see what was changed from the commit messages.  There's about 5 different groups. So that is _almost_ all of the widgets.  The only 2 remaining are `Uize.Widget.Resizer' and `Uize.Widget.Resizer.Marquee`.  We've made changes to those on our end and on Uize's end the file structures have completely changed...