Removed include/osg/Types header defining osg::ubyte, osg::ushort etc. Changed

any reference to these in the distribution across to using unsigned char,
unsigned short etc.  This has been done to keep the OSG code more opaque
to what types are.

include/osgDB/Field

@@ -14,7 +14,6 @@
 #ifndef OSGDB_FIELD
 #define OSGDB_FIELD 1
 
-#include <osg/Types>
 #include <osgDB/Export>
 
 #include <string>
@@ -83,8 +82,8 @@ class OSGDB_EXPORT Field
         bool getInt(int& i) const;
 
         bool isUInt() const;
-        bool matchUInt(osg::uint i) const;
-        bool getUInt(osg::uint& i) const;
+        bool matchUInt(unsigned int i) const;
+        bool getUInt(unsigned int& i) const;
 
         bool isFloat() const;
         bool matchFloat(float f) const;