Show more details in map host popup

[jstaffans]

E.g. the first line of the description.

Randy can add some more information to the XML for this. I don't think we want to download the host JSON for the popup, though.

[rfay]

The json now has lots more info, so we do have this capability and should consider this. (It would now be possible to combine the Host and HostBriefInfo types, but one thing at a time...)

[rfay]

The things are are currently available server-side in the initial response from a search are not as extensive as I thought:
SELECT u.uid, w.fullname name, street, city, province, postal_code, country, latitude, longitude, source, picture, notcurrentlyavailable, DEGREES(ACOS(SIN(RADIANS(%f)) * SIN(RADIANS(latitude))+COS(RADIANS(%f)) * COS(RADIANS(latitude)) * COS(RADIANS(%f-longitude)))) * 60 AS distance, CONCAT(latitude, ',', longitude) AS position

Basically, the only useful thing we're not using is the picture, and that's in #42

I'd say this should wait...