Fix pagination columns.

We were overlapping by a column since we resized the content pane, causing a line break.
Add some padding to the bottom of the page.

Keeps pagination from running into the bottom of the window.
Switch to fluid rows.

This actually fixes a problem we had with the first span in a row (pagination, to be precise) still had the 20px margin-left applied.
Remove blogPosts item property.

We are not supposed to define the element which contains blog posts - simply the posts themselves.
Define each BlogPosting as a blogPost.

Not only do we need to define each post's type, but that it's a blogPost of the parent (Blog).
Add a vcard role.

This makes Google Webmaster Tools happy.
Merge branch 'refs/heads/master' into namespacing
Move the published date below the content and add a textual updated / modified date.

Most of what we write is not time sensitive, so having "2 years ago" doesn't make sense.