Actually for any singleton just say it has no static members,
but if there are static members defined, print warning.

Broken by 4e7e4629

Instead of preventing the selection from happening at the first place,
which conflicted with drag-drop, allow the selection to happen, but
after the fact re-select the currently selected item.

Favorites and Settings are force-loaded before viewport is created,
so they can be used right away in all views.

Also set up resize listener in listeners config, not in afterrender.

Keeping it simple.

At least for now while we only have one tab - which is silly.

No more needed.

The change from class 'container' to id 'card-panel' screwed up
something with CSS selectors specificity, so making the ID into
a class and moving h3 styles back below .card-panel.

This was a bogus/hacky implementation.  Not all classes in the world
will start with "Ext." - for example when we generate docs for this
very docs app itself.  Or deciding that class names can't be
all-lowercase.

Needs to be implemented properly.

Looking up guides from the main page is much more useful, there
aren't that many of them.

Besides the top100 list contained only 99 items anyway, now even less.

"container" is too ambiguous - everything is a container.
Not good to have one specific container named "container".

- Renamed some classes with more sensible names.
  Instead of two two divs having .legend class, we now have
  .section class that's applied to all main divs on index page.

- Removed extra </div>

- Moved all index-page styles to one place.

- Reduced some of the duplication.

- There's no tables.
- There's no h2.
- There's no .piechartlinks div.
- There's no .group div.

Instead of using plain:true on tab-panel, setting some custom styles
to render it almost like plain:true would.  For some reason the
plain:true just produced something ugly - now looks much better.

Also renamed the ID of tab-panel and reformatted the styles a bit.