made cowsay py2.6 compilant

cowsay.py

@@ -14,7 +14,9 @@ def cowsay(msg,args):
 		return
 
 	try:
-		txt=subprocess.check_call(["cowsay","-f",cowfile,text])
+		p=subprocess.Popen(["cowsay","-f",cowfile,text],stdout=subprocess.PIPE)
+		p.wait()
+		txt=p.stdout.read()
 		for line in txt.split('\n'):
 			#brathuhn.sendStyledMsg(brathuhn.ROOM,line,'groupchat',)
 			brathuhn.sendMonoMsg(brathuhn.ROOM,line,'groupchat')