Added dummy data generator.
Updated to use generated dummy data.
Refactored for readability
Updated logic for checking if a point is in a bounds.
Updated map settings.
Added a new marker for representing groups.
Updated to utilize a different projected coordinate system for quadtree calculations.
Updated parameters for generating dummy data.
Major refactoring to eliminate nested looping.
Added an example to render a thousand custom google maps overlays.
Merge branch 'master' into gh-pages
merged changes from master