Use Bootstrap's container class to center wed.
Remove extraneous space from between menu items.
Calculate the maximum height of the contextual menu using the gui_root height rather than frame height.
Wed now gets all contextual transformations by calling Mode.getTagTransformations.
Added Modal.getPrimary().
Added code to update modal size to fit the screen.
Make modal position absolute and don't worry about typeaheads for now.
Handle window size changes.
Removed Mode.getTransformationRegistry().
Doc update to reflect latest changes.