From Paul Obermeier, "Please find enclosed some changed OSG header files.

The changes are more or less just beautifications
(when looked at them from the C++ view), but make
wrapping OSG with SWIG easier.
I have tested the changes with both 2.8.1-rc4 and the
current head and would appreciate to incorporate the
changes in both branches.

Here is a description of the changes:

osg/BoundingSphere:
   Use the following typedef (like used in BoundingBox)
       typedef typename VT::value_type value_type;
   instead of
       typedef typename vec_type::value_type value_type;

   SWIG reports errors on the latter construct.
   Also makes it consistent with BoundingBox.


osg/Vec4ub:
   Consistent use of "value_type" throughout the file.


osg/Vec?b:
   Consistent use of "value_type" throughout the files.

   Also changed
       typedef char value_type;
   to
       typedef signed char value_type;

   In the case of a simple "char", SWIG assumes a string.
   Using "signed char" instead of "char" does not change
   the behaviour of the class.
"

include/osg/BoundingSphere

@@ -35,7 +35,7 @@ class BoundingSphereImpl
 {
     public:
         typedef VT vec_type;
-        typedef typename vec_type::value_type value_type;        
+        typedef typename VT::value_type value_type;        
 
         vec_type    _center;
         value_type  _radius;