Give default _elemdict and _propdict attributes to OSA classes, so

we don't get infinite recursion for suites that don't have an application
class.

Also got rid of some tabs.

Lib/plat-mac/aetools.py

@@ -144,6 +144,8 @@ class TalkTo:
     """An AE connection to an application"""
     _signature = None   # Can be overridden by subclasses
     _moduleName = None  # Can be overridden by subclasses
+    _elemdict = {}      # Can be overridden by subclasses
+    _propdict = {}      # Can be overridden by subclasses
     
     __eventloop_initialized = 0
     def __ensure_WMAvailable(klass):