1. Now iPad vertical gets a collapsed sidebar with columns
2. Moved sidebar toggler styles from layout to sidebar/base
3. Added body class .sidebar-footer to support an always collapsed sidebar
4. Added $indented-lists (bool) for easily setting list indent preferences
5. Removed no-sidebar checking from sidebar-toggler, handled it through css.
2. Added a page layout and improved html on post layout.
3. Improved flexibility of stylesheets for different layout types.
4. Collapsing sidebar now moves it to the bottom of the page and floats
content into columns.
5. Improved sharing settings, added Google plus one.
