Lizard-ui

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- Added collapsible sidebar.

- Changed css framework from yui to blueprint: more understandable. The
reason for yui was that it had a 100%-width layout. We're now building up
the layout (grid-wise) ourselves due to the collapsible sidebar, so
switching back to blueprint is now possible.

- Changed layout to match Dirk-Jan's latest screenshots.

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- Layout improvements.

- Added documentation (just mount our urls!).

- Removed separate icons, leaving only the sprite'd icons.

- Added jqueryui. Including it automatically. It also means extjs isn't
included automatically anymore.

- Sidebar width is 300px instead of 180px.

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- Added extjs javascript library.

- Added javascript and css for dividing the vertical space equally.

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- Bugfix: removed sample breadcrumb content from the template.

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- Added openlayers 2.8.

- Added famfamfam silk icon set.

- Added background to menubar, footer and body.

- Removed blueprint and added the YUI css framework.

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- Nested our templates in templates/lizard_ui instead of directly in
templates. We're well-behaved now!