Update default.py

To integrate support from other plugins : Vaughnlive,ilive,p2p, and sportsdevil . Please note that user may have to install these plugins manually. Besides, the usual name, item tags, we can now call ilive by tag 
<ilive>[channel id here]</ilive> 
or vaughlive by <vaughn>[channel name]</vaughn> and for 
sportsdevil you must have your referer , for example : 
<sportsdevil>http://showsport-tv.com//update/bein3.html</sportsdevil> <referer>YOUR REFERER </referer> and <p2p>acestreamid</p2p> 
for sopcat <p2p>sop://[sopcast link]</p2p>