Doge-ify map + easier contributing to DogecoinMap

Hi!  I'm a web developer, a contributor to CoinMap, and I've got a few hundred Dogecoin. I have a few ideas to Doge-ify and simplify DogecoinMap

- set default map to [Dogetiles](https://github.com/mapmeld/dogetiles#quick-intro) - I welcome feedback on it
- refresh.py allows admin to curate points (shows you info about a new point on OSM before you add it)
- if you reject a point, it sets physical: false, and that point won't be shown on the map until the JSON is edited
- refresh.py pretty-prints JSON so people can view and edit points

I :heart OpenStreetMap but CoinMap is tied too tightly to it. This system lets you add points from OSM or GitHub. When someone makes a GitHub point, set id to a string like "id42912" because OSM only uses numbers.

You can see a preview at http://mapmeld.github.io/dogecoinmap.github.io/

![bhewg3uceae8vdp](https://f.cloud.github.com/assets/643918/2237451/10e8da02-9ba9-11e3-9fbd-cc9fe8a76f90.png)