Disable the CDN jquery

- Should be able to enable this without overriding the provided jQuery
  via diazo rules, but this is not a priority now.
Provide more elements.
Force the vertical scrollbar on

- Until I can figure out what's causing the scrollbar to temporarily
  appear and disappear on form element changes (there is some ajax
  validation) I have to keep this on to prevent the users from having
  seizures on the whole page jogging left and right.
Portlet header styles.
Ensure the active page is highlighted

- Harmonize the css class from Plone into Bootstrap to ensure the active
  tab appears highlighted.
Ensure the correct widths are being used

- Hide all empty columns on final template
- Expand the width of the main column to take over the sidebars when
  possible
- Does not hook into the previous CellML Layout addon yet.
Render some missing error messages

- Some error/info messages are generated in weird places, and I can't
  quite figure them out.  This is a workaround to ensure those are
  rendered.
- May result in duplicate messages or insufficiently covered area.
Let that clear things.
Merge in the latest sunburst theme.
Removing all legacy stylesheets.

- Bye tripoli, I don't miss you.
Viewlet changes.

- Leave the default Plone things as is.
- Render the CellML ones, Diazo will/should mop up that mess.
- Not calling it a sticky footer anymore.
Rework all viewlets

- CellML specific viewlets are now deprecated because diazo can arrange
  the elements much better than what viewlets can.
- Also preserve the existing ones in a more future compatible way.
- Sticky footer viewlets no longer apply so this is merged into the
  CellML footer viewlet with a different id.
Correct that spelling, too.
Sponsor bar.