[team][models] Move __unicode__ to __str__

__unicode__ is a leftover of Python 2

beat/web/team/models.py

@@ -144,7 +144,7 @@ class Team(models.Model):
 
     # _____ Overrides __________
 
-    def __unicode__(self):
+    def __str__(self):
         return self.fullname()
 
     # _____ Methods __________