Product change logs

• ★ easyFBT 2016 (updated: April 2016)
• easyFBT 2015 (updated: April 2015)
• easyFBT 2014 (updated: May 2014)
• easyFBT 2013 (updated: March 2013)
• easyFBT 2012 (updated: May 2012)