Check browser version, blacklisting outdated IE

Add an alert message in case of outdated browser.
Quite the same as #7597, but implementing a blacklist for outdated IE (version < 10)
![screenshot from 2014-11-24 17 10 19](https://cloud.githubusercontent.com/assets/715065/5168191/44d3d2e0-73fd-11e4-9cae-12b432a80c32.png)

remove commented code