fix #166,#229

Fixes #166 and #229 

- remove duplicate country_map_view
- zero-money amount will not be shown on hover
- correct wrong offset of metadata fixed when zommed in/out

![](http://screencloud.net//img/screenshots/bfb9beae0d049503cdd816e90725187f.png)
![](http://screencloud.net//img/screenshots/95f332392ace8b46e3951a3155ec32e6.png)