title: Ruby: Remove everything after (and including) decimal
body: <p>I've got this string: <code>"37:48.1234567"</code> (there's a colon and there's a decimal in there)</p>
  
  <p>I need to remove everything from the decimal and past it.</p>
  
  <p>The number before the decimal could be any length (ie. <code>1:23:39.12357</code>).</p>