-Much improvement to baked light baker

-Fixed many bugs in stretch mode
-Fixes to camera project and unproject as consequence of the above
-added setget to script (documented in script doc)
-more fixes to collada exporter for blender

scene/3d/skeleton.h

@@ -118,6 +118,8 @@ public:
 	Transform get_bone_transform(int p_bone) const;
 	Transform get_bone_global_pose(int p_bone) const;
 
+	void set_bone_global_pose(int p_bone,const Transform& p_pose);
+
 	void set_bone_enabled(int p_bone, bool p_enabled);
 	bool is_bone_enabled(int p_bone) const;