title: InputScope for coordinates (minus needed)
body: <p>I need have a textbox where user can input latitude and longitude, eg.
  51.499167, -0.124722 for Palace of Westminster.</p>
  
  <p>The problem is, that InputScope numerical hasn't <code>Minus</code> char.</p>
  
  <p>Has some the same problem and has a solution?</p>