title: Ruby capitalize every word first letter
body: <p>I need to make the first character of every word uppercase, and make the rest lowercase...</p>
  
  <pre><code>manufacturer.MFA_BRAND.first.upcase
  </code></pre>
  
  <p>is only setting the first letter uppercase, but I need this:</p>
  
  <pre><code>ALFA ROMEO =&gt; Alfa Romeo
  AUDI =&gt; Audi
  BMW =&gt; Bmw
  ONETWO THREE FOUR =&gt; Onetwo Three Four
  </code></pre>