title: Get first and last day of month using threeten, LocalDate
body: <p>I have a LocalDate which needs to get the first and last day of the month. 
  How do I do that?</p>
  
  <p>eg. <code>13/2/2014</code>
  I need to get <code>1/2/2014</code> and <code>28/2/2014</code> in <a href="https://docs.oracle.com/javase/8/docs/api/java/time/LocalDate.html" rel="noreferrer">LocalDate</a> formats.</p>
  
  <p>Using threeten LocalDate class.</p>