Refactor LayerActions

[Bill Morris]

Looks like layeractions can be removed entirely given the commonality of the SQL and cartocss. follow this example, and add variables for year and layer id. Then populate layerOptions with the variables.

The one trick is to get a layer reload onclick, in the onload context. Above example seems to do that.

[Bill Morris]

The above example uses createVis, which doesn't work as well here. This might be the way to go instead:

layers[0].setOptions({
  query: "SELECT * FROM {{table_name}} WHERE megacity = 1",
  tile_style: "#{{table_name}}{ marker-fill: black; }"
});

Waaaaaaay down at the bottom of the script so it reloads onclick? Maybe?

[Bill Morris]

Woot. Works w/ Andrew's example using updateQuery()