Ensuring that disallowed types do not show up in search results

* There is a bug in the features export for apachesolr search
  that doesn't respect the types that shouldn't be indexed. This
  will ensure that those types don't show up in search.

Fixes #3206 

@aaronschachter 
Is this a reason why `dosomething_search` is constantly overridden?  If so can we remove the types from the feature, since we'll just be handling it this way instead of features?