Allow users to search for other things besides users in header

[farmcp]

• search for categories in friends - answer the question "where do my friends go for sushi"
• search for friends that have a specific city. Ie need to answer the question "I'm in x city right now, what do my friends recommend that I eat?"

[hc5duke]

i imagine this would be from the user's own list, rather than a global facebook places search?

[farmcp]

This would be from our global database of restaurants.

[farmcp]

Thinking maybe elasticsearch or solr or tire?