Tweaked the Room.functional_display_name() to not return anything for more variations of 'breakout' room names.

 - Legacy-Id: 11585

Author: levkowetz

ietf/meeting/models.py

@@ -355,7 +355,7 @@ def bottom(self):
     def functional_display_name(self):
         if not self.functional_name:
             return ""
-        if self.functional_name.lower().startswith('breakout'):
+        if 'breakout' in self.functional_name.lower():
             return ""
         if self.functional_name[0].isdigit():
             return ""