GPolygon.fromEncoded() and GPolyline.fromEncoded() don't take style arguments the same way as the regular constructors--styles have to be attributes of the encoded polyline/polygon object, rather than being arguments to the constructor

== -> === changes.
Remove unused variable.
Dot notation.

Add shape clickability.

* Add style keyword to the macro layer.
* Add code to merge styles in properly.
* Allow using references to styles in lines / polys.