v2.9.0

Breake Changes

• projFunc parameter need pass project and unproject functions to handle other geographic coordinate system, but compared to version 2.8.0, the order of two functions needs to be swapped.

Features

• add colorMapping options #19
• [Experimental] More accurate reprojection methods for handling non-3857, 4326 projections #16

Thanks

@staffordsmith83 @hillmb79