Delete Animated option and add a new Aggregation method

When style is set as animated some things needs to happen:

• if the style applied does not use any variable it should work like it’s working with now
• if we have one style using “by value”
  • if it’s a category attribute: torque style should use cdb_mode([attribute]) as aggregation and use the turbocarto for the category
  • if it’s a ramp attribute: torque style should use avg([attribute]) as aggregation and use the turbocarto for ramps
• if we have more than one style attribute using “by value” -> we can’t do anything with torque here since we don’t have multivariable torque <- cc @saleiva. One solution would be to disable animated when this happen but not sure how hard is to explain that limitation to the user.

[javisantana]

dios os quiere

[xavijam]

I added the comment in the code above, not in the real CartoCSS. Torque version 2.15.1 (from npm module).