A couple of smaller fixes;

- Modifier Panel, name label for "Virtual" modifiers was too short
- On extrude Bones, "soft distance" now is always set based on length
  of the bone (also on CTRL+click, also when Envelope drawmode is not set)
- Added undo-push for "Apply Bone Envelopees to VertexGroup" in WeightPaint.
- Menu-buttons in floating panels sometimes gave drawing error
- InfoWindow buttons were always allocated & drawn, even when window was
  zero sized... waste of cpu, tsk!

source/blender/src/poseobject.c

@@ -1,7 +1,7 @@
 /**
  * $Id$
  *
- * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
+ * ***** BEGIN GPL LICENSE BLOCK *****
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -22,7 +22,7 @@
  *
  * Contributor(s): Ton Roosendaal, Blender Foundation '05, full recode.
  *
- * ***** END GPL/BL DUAL LICENSE BLOCK *****
+ * ***** END GPL LICENSE BLOCK *****
  * support for animation modes - Reevan McKay
  */