OOIION-1667
Cluster pins reflect underlying statuees and now have a infoWindow that displays info about the underlying objects.
The status color is determined by the 'worst' status among those that are clustered, and the gray pen is treated as a catch-all.
The infoWindows themselves are vastly improved, and it is unlikely that an infoWindow from an observator bounding box will bleed through.
Merge pull request #269 from cgalvarino/cluster_counts_and_cleanup

OOIION-1667