Remove the badge

The count in the badge is highly context dependent and in many cases, it's completely unclear in the UI as to what the count actually is. This is also reflected in the code with the use of a global `@count` instance variable.

This removes the feature by removing the global `@count` variable throughout the application and the other relevant pieces that refer to it. It's left in place in one controller where it was actually overridden to serve a different purpose.

:construction: Let's discuss. Also note that this is not finished yet. The cucumber scenarios fail, for example. :construction: