Merge branch '2-bug-in-function-get_room_messages' into 'master'

Resolve "Bug in Function "get_room_messages""

Closes #2

See merge request !2

mytrix.py

@@ -195,6 +195,8 @@ class Matrix:
 
         if "end" in data:
             self._from_cache[room] = data["end"]
+        elif "start" in data:
+            self._from_cache[room] = data["start"]
 
         return data