title: bootstrap daterangepicker, create calendar with custom colors for each days
body: <p>I'm using this script:
  <a href="https://github.com/dangrossman/bootstrap-daterangepicker" rel="nofollow">https://github.com/dangrossman/bootstrap-daterangepicker</a>
  It's very simple and fine, now I want to see in the calendar built any days in highlighted, the color must be custom, so I can see 
  availability in the period I'm going to select, such as a HeatMap... </p>