Replacing if-guard hack with actual bugfix.
Replacing if-guard hack with actual bugfix.

The call to geojsmap's _create() method (via the call to _super()) in turn calls
_update(), which results in an error if this.colorScale hasn't been set yet.
So, we just make sure to set this.colorScale() *before* the call to _super().

Kitware/tangelo,Kitware/tangelo,mathstuf/tangelo,Kitware/tangelo,mathstuf/tangelo,mathstuf/tangelo