tabs to spaces, remove trailing white space. (apart of pep8)

didnt do "release/scripts/io" since some exporters cant be auto converted

release/scripts/modules/bpy_ext/Object.py

@@ -1,4 +1,4 @@
 import bpy
 class_obj = bpy.types.Object
 
-class_obj.getChildren = lambda ob: [child for child in bpy.data.objects if child.parent == ob]
+class_obj.getChildren = lambda ob: [child for child in bpy.data.objects if child.parent == ob]