[bug 896649] Fix clicking on clustered pins opens every single pin
[bug 896649] Fix clicking on clustered pins opens every single pin

mmmavis/webmaker.org,mozilla/webmaker.org,mozilla/webmaker.org,alicoding/webmaker.org,cadecairos/webmaker.org,alicoding/webmaker.org,cadecairos/webmaker.org,jbuck/webmaker.org,mmmavis/webmaker.org