BPython:

- new submodule Scene.Radio, for radiosity: still incomplete, but in shape for demos, updated SConscript to include it;
- new functions in Window module;
- doc updates: adding a todo file and a new start page for our docs: API_intro.py + other updates;
- small fix in Ipo.c provided by Damien McGuinnes (thanks!): Nathan has a patch with IPO additions and fixes for this and more, but until it is committed, there's this fix for Ipo.getCurve('LocX'), LocY, Z and QuatW,X,Y,Z too, according to Damien.

Other files:
- radpreprocess.c: added check for "during_script()" so eventual msgs don't popup during scripts;
- drawmesh.c: made a pointer (display list) be checked before accessed, fixes crash in scripts that forget to update display lists for subsurf meshes when a 3d view is in textured view mode.

Script: updated bevel_center by Loic Berthe.

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

@@ -0,0 +1,66 @@
+# Blender.Scene.Radio module and the Radiosity PyType object
+
+"""
+The Blender.Scene.Radio submodule.
+
+Radio
+=====
+
+This module gives access to B{Scene Radiosity Contexts} in Blender.
+
+Example::
+  import Blender
+  from Blender import Scene
+
+  # Only the current scene has a radiosity context.
+  # Naturally, any scene can be made the current one
+  # with scene.makeCurrent()
+
+  scn = Scene.GetCurrent()
+
+  # this is the only way to access the radiosity object:
+
+  radio = scn.getRadiosityContext()
+
+  radio.setDrawType('Gouraud')
+  radio.setMode('ShowLimits', 'Z')
+
+  radio.collectMeshes() # prepare patches
+  radio.go() # calculate radiosity
+  Blender.Redraw(-1)
+
+
+@type Modes: readonly dictionary
+@var Modes:
+    - ShowLimits
+    - Z
+
+@type DrawTypes: readonly dictionary
+@var DrawTypes:
+    - Wire
+    - Solid
+    - Gouraud
+"""
+
+class Radio:
+  """
+  The Radiosity object
+  ====================
+    This object wraps the current Scene's radiosity context in Blender.
+  """
+ 
+  def go():
+    """
+    Start the radiosity simulation.  Remember to call L{collectMeshes} first.
+    """
+
+  def collectMeshes():
+    """
+    Convert selected visible meshes to patches for radiosity calculation.
+    """
+
+  def freeData():
+    """
+    Release all memory used by radiosity.
+    """
+