Update the standard 2 layout.
Remove unneeded standard page 3.
Remove landing page 2.
Combine landing and standard page 1 layouts.
Update CSS for landing standard page grid.
Adjust wrapper classes on layouts.
Update the grid based on layouts.
Add left sidebar region and update page.tpl.php.
Fix thumbnail name and group layouts.
Remove the underscores.
Width and margin for first sidebar.
Layout for left sidebar region.
Layout for standard 2.