sasl not support msg using debug. Dimitur, maybe it is time to remove blocking versions from svn?

src/common/xmpp/auth_nb.py

@@ -65,7 +65,7 @@ class SASL(PlugIn):
 		''' Used to determine if server supports SASL auth. Used internally. '''
 		if not feats.getTag('mechanisms', namespace=NS_SASL):
 			self.startsasl='not-supported'
-			print >> sys.stderr, 'SASL not supported by server'
+			self.DEBUG('SASL not supported by server', 'error')
 			return
 		mecs=[]
 		for mec in feats.getTag('mechanisms', namespace=NS_SASL).getTags('mechanism'):