enable only showing results on map

Fixes #132
upgrade leaflet/leaflet-markercluster
configure markercluster to not cluster at maxZoom #134
use the map in the moveend event
wait a little longer for facets
Merge pull request #142 from paulswartz/132-filter-to-map

enable only showing results on map
Merge pull request #143 from paulswartz/134-ungroup-points

configure markercluster to not cluster at maxZoom
Merge branch 'gh-pages' into edits

Still some glitches on creation, though all tests pass.

Conflicts:
	src/ui/map.js