title: jquery FullCalendar custom recurring events
body: <p>Im using FullCalendar jquery library for creating events. 
  The requirement here is to create recurring events every x days. 
  For example create an event that is recurring on each second Monday (every 14 days in this case).</p>
  
  <p>Currently the library supports weekly or monthly recurring events.
  How can I achieve this?</p>