Update CHANGELOG

(also, fix a traceback-typo)

CHANGELOG

@@ -3,6 +3,7 @@ For more detailed changelog, see the roadmap:
 http://dev.louiz.org/projects/poezio/roadmap
 
 * Poezio 0.8.3 - dev
+- The interface will adapt if the terminal is too small
 - Implement XEP-0184 (message delivery receipts)
 - better setup scripts (use setuptools)
 - Better timezone handling

src/tabs/muctab.py

@@ -843,7 +843,7 @@ class MucTab(ChatTab):
             display_user_list = False
         else:
             display_user_list = True
-        display_info_win = not self.size.tab.degrade_y
+        display_info_win = not self.size.tab_degrade_y
 
         self.topic_win.refresh(self.get_single_line_topic())
         self.text_win.refresh()