Typo

When running typo from svn, if I do a live search, then clear the search field, the spinner toggles on, but a search isn't performed, so if I type, the spinner toggles off and a search is performed and the spinner toggles on again when the search finishes. And I can get similar effects by typing just a single space into the search field (since it doesn't appear to search for that).

There's actually two issues here:

1. The spinner should be showing and hiding, not toggling

2. Clearing the search field should clear the search results as well. At least, I personally think it should. It's not very important, it just seems that the search results should reflect the current state of the field, given that it's a live search.