title: Tire - query with conditional/custom _score
body: <p>I am searching with tire normally with filters, all fine.
  But I want to be precise in search, for a sample if i search for "dfssdljf" it wont return me any data, but currently it return me completely irrelevant data.</p>
  
  <p>According to Tire attributes, i can reject result with _score &lt;0.5 but its only during iteration after search. But after i tried this - its a bad idea because i have pagination which can be messed during iteration.</p>
  
  <p>Point is, if i can do something line "WHERE _score > 0.5" during Tire search ?</p>