fix distance calculation in list view

[groovecoder]

The distance calculation during list view needs to run AFTER the geolocation has been detected. Need to re-trigger ListView rendering once the location arrives.

[codelahoma]

As far as I can see the ListView is re-rendered after the location arrives.

Can you expand on the issue/show how to reproduce?

[groovecoder]

Hmm ... you're right. I may have filed this earlier. Or, it may be that Firefox just takes a much longer time to trigger the location event. I'll close this and opened #13 to add a better "calculating" indicator until the distance is available.