Resolving simple errors, testing with ES 1.7 and sample.json

[salamynder]

• is not a function, but property: account.is_anonymous()
• null-check: search.py row if isinstance(row, basestring) else row[parts[counter]]
• similar null-check in jquery facetview
• remove stuff which is already in base template (search/index.html)

TODO: resolve error in Tag-cloud of templates/home/index.html

[todrobbins]

@tfmorris care to review?