Search layout is cleaner.

The layout for search page, when we find a list of posts, is cleaner.

[Branch: dev1.2.6]
Categories now wont show up if they are blank.

Blank categories and blank tags wont show up at the bottom of posts.

Changed the way the 404.phtml view looks. #234

Cleaned up some styles.

[ticket: #234][Branch: dev1.2.6]