2.50:

svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r19820:HEAD

Notes:
* Game and sequencer RNA, and sequencer header are now out of date
  a bit after changes in trunk.
* I didn't know how to port these bugfixes, most likely they are
  not needed anymore.
  * Fix "duplicate strip" always increase the user count for ipo.
  * IPO pinning on sequencer strips was lost during Undo.

release/scripts/help_tutorials.py

@@ -37,5 +37,11 @@ This script opens the user's default web browser at www.blender.org's
 # ***** END GPL LICENCE BLOCK *****
 # --------------------------------------------------------------------------
 
-import Blender, webbrowser
-webbrowser.open('http://www.blender.org/education-help/tutorials/')
+import Blender
+try: import webbrowser
+except: webbrowser = None
+
+if webbrowser:
+    webbrowser.open('http://www.blender.org/education-help/tutorials/')
+else:
+    Blender.Draw.PupMenu("Error%t|This script requires a full python installation")