title: Lodash title case (uppercase first letter of every word)
body: <p>I'm looking through the lodash docs and other Stack Overflow questions - while there <a href="https://stackoverflow.com/questions/196972/convert-string-to-title-case-with-javascript">are several native JavaScript ways of accomplishing this task</a>, is there a way I can convert a string to title case using <em>purely</em> lodash functions (or at least existing prototypal functions) so that I don't have to use a regular expression or define a new function?</p>
  
  <p>e.g. </p>
  
  <pre><code>This string ShouLD be ALL in title CASe
  </code></pre>
  
  <p>should become</p>
  
  <pre><code>This String Should Be All In Title Case
  </code></pre>