Updates

- Updates Sheer
- Adds related posts to the posts page
- Adds popular stories to the landing page (replaces the current popular stories and renames the old one to related links)
- Adds category filter links to category slugs
- Sidebar adjustments
- Post page now uses ft img thumbnail image size
- Adds js plugin to convert one input into two ([browser/other tests](https://github.com/cfpb/cfgov-refresh/issues/72))
- Comments out the ajax pagination stuff for now (was causing issues in IE7)
- Shows a "No results for" message when there are no results for a given set of filters
- Date filters show current selection
Actually... we'd like to add a `total` property to `posts` and think we have figured out a way to do it, can you confirm if this is the best way to add it?

In `wordpress_post_processor.py` we updated `def posts_at_url` to:

```python
def posts_at_url(url):
    
    current_page = 1
    max_page = sys.maxint

    while current_page <= max_page:

        resp = requests.get(url, params={'json':1,'page':current_page})
        results = json.loads(resp.content) 
        current_page += 1
        max_page = results['pages']
        total = 0 # Added this
        for p in results['posts']:
            total += 1 # ... and this
            yield p
```

If this is all good then should we also add it to `wordpress_view_processor.py` as well?