add mouse event about move, out, and click
add marker to show event count about a country
set layer visibility on reserview
rename markers to markerLayer
add field (city, lat, lng) to event
add city to test data, show info on mapview
add test events with city and latlng
Merge pull request #55 from yglin/city

Event裡面增加縣市跟經緯度
Merge branch 'mouse_event'

Conflicts:
	public/js/mapview.js