Switch to using an OSM map, using leaflet.js and leaflet-hash for hash-based navigation persistence.
Add clustering with the GMaps Utility Libraries MarkerClusterer
Revert "Add clustering with the GMaps Utility Libraries MarkerClusterer"

This reverts commit 93924b53af18a998404aa44dded2620f24ce067a.
Merge branch 'osm-leaflet' of https://github.com/ianmcorvidae/mb-places-map into ianmcorvidae-osm-leaflet
use leaflet.markercluster to cluster the markers
Add a layer for OpenAerial data
Update leafletjs
add google hybrid layer