CartoDB/cartodb.js — pull request #260 by javisantana (2014-12-30 09:01:45+00:00)
Title: adds raster support

Hey @rochoa take a look.

the way to create a raster thing is:
```
cartodb.createLayer(map, {
user_name: 'dev',
type: 'cartodb',
sublayers: [{
sql: 'select * from pop',
cartocss: '#pop { raster-opacity: 1.0; }',
raster: true,
}],
})
```

I don't know if use ``raster: true`` or just ``geom_type: 'raster'`` what do you think ?