updated csv, switched to graduated circles for symbology

Rafa - 
Minor: I pulled the latest csv for incidents, as well as tidied up the popup title.
Major: The icons are rad, and marker cluster is a super plugin, but the size of the incidents tells a bigger story than just the location. I realized that today while flying over several of the CA fires, and realizing how big RIM was in comparison to some of the others... graduated symbols shows overlaps well, and adds perspective. A legend would be useful, but that could be added later.
Cheers.
A