Fix multiple rooms in config file

Closes https://git.autonomic.zone/decentral1se/xbotlib/issues/33.

CHANGELOG.md

@@ -3,6 +3,7 @@
 # xbotlib 0.14.0 (2021-01-19)
 
 - Reduce generated config flow to only mandatory options
+- Fix support for multiple rooms in configuration file ([#33](https://git.autonomic.zone/decentral1se/xbotlib/issues/33))
 
 # xbotlib 0.13.1 (2021-01-19)
 

xbotlib.py

@@ -133,7 +133,7 @@ class Config:
         if rooms is None:
             return None
 
-        return rooms.split(",")
+        return [room.strip() for room in rooms.split(",")]
 
     @property
     def no_auto_join(self):