day 3: a mostly working app

The app seems to be mostly working well now. I changed the reverse
geocoding from Google to using YQL's data tables. This allowed me to
get the WOEID ("Where On Earth ID") needed for Yahoo weather. This also
makes requests from outside the US to work. I think.

The app uses HTML5 local storage for the WOEID data.

To do/fix:
- fix styling, rather than using the CSS file from the class
- add jQueryMobile features to make it feel more like a mobile app
- add a WOEID lookup for manually-entered locations; right now, that
only comes from automatic geolocation
- improve/add error handling (what happens if users input a fake
location? what if local storage isn't working?)