Ensure that selenium gets shut down in tests
Ensure that selenium gets shut down in tests

This should fix our Appveyor builds.

greyfenrir/taurus,greyfenrir/taurus,greyfenrir/taurus,Blazemeter/taurus,greyfenrir/taurus,Blazemeter/taurus,Blazemeter/taurus,itaymendel/taurus,Blazemeter/taurus,Blazemeter/taurus,Blazemeter/taurus,Blazemeter/taurus,greyfenrir/taurus,Blazemeter/taurus,itaymendel/taurus,itaymendel/taurus,greyfenrir/taurus,greyfenrir/taurus,Blazemeter/taurus,itaymendel/taurus,greyfenrir/taurus,greyfenrir/taurus,itaymendel/taurus