Added an option to OBJ import "As Instance" - so people can import all the objs objects into a new scene and have a group instanced in the current scene.

some extra details in Epydocs about how groups work.

source/blender/python/api2_2x/doc/Group.py

@@ -92,6 +92,9 @@ class Group:
     This object gives access to Groups in Blender.
   @ivar name: The name of this Group object.
   @ivar users: Number of users this group has (read only)
-  @ivar objects: Objects that this group uses. This is an iterator with list like access so use list(gp.objects) if you need to use a list). where gp is a group object.
+  @ivar objects: Objects that this group uses.
+  This is an iterator with list like access so use list(gp.objects) if you need to use a list. (where gp is a group object).
+  The groups objects can be set by assigning a list or iterator of objects to the groups objects.
+  objects.append() and objects.remove() also work with the the objects iterator just like with lists.
   """
 

source/blender/python/api2_2x/doc/Object.py

@@ -302,10 +302,11 @@ class Object:
         True/False - does not indicate that this object has any dupliFrames,
         (as returned by DupObjects) just that dupliFrames are enabled.
     @type enableDupFrames: bool (True/False)
-    @ivar enableDupGroup: The DupliFroup status of the object.
+    @ivar enableDupGroup: The DupliGroup status of the object.
         True/False - Set DupGroup to a group for this to take effect,
         Use DupObjects to get the object data from this instance. (Use with L{DupObjects<DupObjects>})
     @type enableDupGroup: bool (True/False)
+        Set True to make this object an instance of the objects DupGroup.
     @ivar enableDupRot: The DupliRot status of the object.
         True/False - Use with enableDupVerts to rotate each instance
         by the vertex normal. (Use with L{enableDupVerts<enableDupVerts>})