Added support for GeoJSON objects for path parameter/attribute in polygon & polyline directives.  This is in addition to the existing latitude/longitude object arrays.  Also added example page using GeoJSON coordinates, and example page with polygons containing a huge number of points to demonstrate the use of the new static parameter/attribute for the polygon and polyline directives
Added zindex & events parameters to polygon directive. Cleaned up redundant code in polygon directive and used equivalent functions available in GmapUtil service
Merge pull request #1 from rickhuizinga/feature/polygon-events

Added zindex & events parameters to polygon directive and cleaned up redundant code in polygon directive and used equivalent functions available in GmapUtil service
Merge pull request #315 from rickhuizinga/geojson

Added support for GeoJSON objects in polygon & polyline directives
Added support for GeoJSON objects for center parameter of google-map directive and coords parameter of window directive