change #5

clear selected feature and hide infowindow when clicking another layer
change #6

Select points within a circle
change #7 add time slider
change #7

Add time slider
Merge branch 'master' of https://github.com/GretaYi/AtlStreetcar

Conflicts:
	index.html
	script/main.js
Merge branch 'master' of https://github.com/GretaYi/AtlStreetcar

Conflicts:
	script/main.js
Merge pull request #22 from GretaYi/master

change #5