2.5

Image Window
* Unpack operator now works.
* Some small layout code tweaks.

Info Window Header
* Moved to python UI code.
* template_running_jobs, template_operator_search added.
* Ported external data operators: pack/unpack all, make
  paths relative/absolute, find/report missing files.

Also
* Report RPT_INFO too, not only warnings and errors.
* Run UI handle functions after RNA and Operators.
* Rename particle system add/remove operators, to not
  include "slot", that's only there for materials because
  that's what they are called now in RNA.

release/ui/space_buttons.py

@@ -11,7 +11,7 @@ class Buttons_HT_header(bpy.types.Header):
 		so = context.space_data
 		scene = context.scene
 
-		layout.template_header(context)
+		layout.template_header()
 
 		if context.area.show_menus:
 			row = layout.row(align=True)